Relevant bibliographies by topics / Instrumental indentation

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Instrumental indentation'

Author: Grafiati
Published: 4 June 2025
Last updated: 23 June 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Instrumental indentation.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Instrumental indentation"

1

Gladkikh, E. V., I. I. Maslenikov, V. N. Reshetov, and A. S. Useinov. "Portable Hardness Tester for Instrumental Indentation." Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques 14, no. 4 (2020): 846–50. http://dx.doi.org/10.1134/s102745102003026x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Vinogradova, Anna, Kirill Gogolinskii, Alexander Umanskii, Varvara Alekhnovich, Alena Tarasova, and Alena Melnikova. "Method of the Mechanical Properties Evaluation of Polyethylene Gas Pipelines with Portable Hardness Testers." Inventions 7, no. 4 (2022): 125. http://dx.doi.org/10.3390/inventions7040125.

Full text
Abstract:
This article is devoted to the study of means and methods for non-destructive testing mechanical properties of polyethylene gas pipelines that have been in operation for 25–55 years. In order to assess mechanical properties, stress at yield was chosen as a key parameter. Stress at yield is determined from the results of tensile tests and is associated with the limiting circumferential (hoop) stress, determined from the results of tests for short-term pressure. Tensile tests require sample cutting and the shutdown of pipelines’ service. To solve this problem of nondestructive testing of pipelines, tests were carried out using the methods of Shore, Leeb and dynamic instrumental indentation. According to the test results, it was revealed that the correlation coefficient between the values of stress at yield and hardness, obtained by the method of dynamic instrumental indentation, is 0.98 which confirms the possibility of the evaluation of the mechanical properties of pipelines by the method of dynamic instrumental indentation.
APA, Harvard, Vancouver, ISO, and other styles
3

Gogolinskii, K. V., A. S. Umanskii, A. S. Golev, K. I. Doronin, and K. A. Tomsky. "Analysis of methods for calculating the module of elasticity during dynamic instrumental indentation." Дефектоскопия, no. 7 (August 23, 2024): 72–76. http://dx.doi.org/10.31857/s0130308224070098.

Full text
Abstract:
The results of a comparative analysis of three methods for calculating the elastic modulus during dynamic instrumental indentation are presented: in accordance with GOST R 56474, GOST R 8.748 and the proposed original method based on data from optical analysis of the indentation using prepared samples of alloys 20Х25Н20С2, 20Х23Н18 and BrANZhNMts9-4-4- 1.
APA, Harvard, Vancouver, ISO, and other styles
4

P.M., OGAR, SHILIN V.A., KAR'YALAJNEN N.V., and OBUCHOV Z.D. "MATHEMATICAL DESCRIPTION OF DIAGRAMS OF INSTRUMENTAL INDENTATION BY A SPHERE. THE BASIC INDENTATION EQUATION." Systems. Methods. Technologies, no. 1(57) (2023): 21–27. http://dx.doi.org/10.18324/2077-5415-2023-1-21-27.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Galanov, B. A., S. M. Ivanov, and V. V. Kartuzov. "Extended characterization of materials based on continuous instrumented indentation diagrams." Uspihi materialoznavstva 2021, no. 3 (2021): 10–23. http://dx.doi.org/10.15407/materials2021.03.013.

Full text
Abstract:
In addition to the traditional determination of hardness and elastic moduli from continuous diagrams of instrumental indentation, it is proposed to determine the yield stress, the characteristic of plasticity, the characteristic relative size of the elastoplastic zone under the indenter, and the volumetric deformation of the material in the area of contact of the indenter with the sample. The indentation diagram shows the transition point to the unconstrained material flow under the indenter. Keywords: indentation, hardness, elastic moduli, contact stiffness, elastic-plastic strains.
APA, Harvard, Vancouver, ISO, and other styles
6

Jiang, Chulin, Michael Davis, and Jurgita Zekonyte. "Finding Minimal Optimal Indent Separation for Polystyrene via Instrumental Nanoindentation and FEA Method." Applied Sciences 10, no. 12 (2020): 4262. http://dx.doi.org/10.3390/app10124262.

Full text
Abstract:
Nanoindentation became a standard non-destructive technique to measure mechanical properties at the submicron scale of various materials. A set of empirical rules were established to guarantee the validity of the results. One of those rules is the separation between individual indents that should be 20–30 times maximum indentation depth. This paper investigates the influence of the distance between indents on the accuracy of mechanical properties for polystyrene with a view to determine minimum optimal separation that is needed to measure various material properties. A series of different depths with three different orientations was considered through both the experimental and finite element method to explore the relationship between the distance and indentation depth. Both methods demonstrated that hardness and modulus values for polystyrene keep stable with the distance approximately 15 times the maximum indentation depth for the matrix type set up, and nominal separation of 10 is enough when indents are executed in a single row or column.
APA, Harvard, Vancouver, ISO, and other styles
7

VanLandingham, Mark. "The Effect of Instrumental Uncertainties on AFM Indentation Measurements." Microscopy Today 5, no. 10 (1997): 12–15. http://dx.doi.org/10.1017/s1551929500060697.

Full text
Abstract:
The accuracy and precision of the quantitative measurements made with various types of scanning probe microscopes (SPMs) can be limited by instrumentation error. The piezoelectric scanners that are utilized in SPMs control either the motion of the cantilever probe with respect to a stationary sample or the motion of the sample with respect to a stationary probe. While these scanners offer many advantageous characteristics that are critical to the performance of SPMs, they also exhibit several behaviors, e.g., hysteresis and creep, that introduce uncertainties in measurements. Also, the nonlinearities associated with the photodiode used in the optical lever detection system can detract from the accuracy of measurements
APA, Harvard, Vancouver, ISO, and other styles
8

Meng, Yujie, Yuzhi Xia, Timothy M. Young, Zhiyong Cai, and Siqun Wang. "Viscoelasticity of wood cell walls with different moisture content as measured by nanoindentation." RSC Advances 5, no. 59 (2015): 47538–47. http://dx.doi.org/10.1039/c5ra05822h.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Skazochkin, A. A., G. G. Bondarenko, and P. Żukowski. "Features of Measuring the Hardness of a Metal Surface Modified with Ultrafine Particles of Minerals." Devices and Methods of Measurements 11, no. 3 (2020): 212–21. http://dx.doi.org/10.21122/2220-9506-2020-11-3-212-221.

Full text
Abstract:
One of the important characteristics of the surface properties of metal parts subjected to friction is hardness. Hardness measurements are important for determining the operational characteristics of parts and monitoring the technological regimes of surface modification. However, hardness measurements of thin modified layers made by different methods can lead to differences in measurement results. The aim of the article was to study the hardness of a metal surface modified with ultrafine particles of minerals by two different methods (instrumental indentation and Vickers hardness measurement) and a comparative analysis of the measurement results obtained by these methods.Standard Vickers hardness measurements at loads of 0.025, 0.1 and 0.5 kgf showed a qualitative difference between the hardness values of the two samples modified with different mixtures of ultrafine particles of minerals and a large heterogeneity of the hardness values over the area. By the method of instrumental hardness, standard measurements were performed without preliminary selection of the indentation site (at a load of 1.05 N) and measurements during indentation into even sections (at low loads of 10 mN).It is noted that the high precision of measurements implemented by instrumental indentation, due to the large roughness of the samples, leads to large values of the error in calculating the measurement results. An additional difference in the results of measurements performed by two methods at shallow indentation depths may be due to the fact that the object under study has a complex structure consisting of a metal matrix and particles distributed over the depth of the sample. A possible way out of the situation lies in the transition from the use of hardness measures when calibrating instruments to standard samples of properties for which the constancy of mechanical properties in the measured range of indentation depths will be ensured, but which are not yet available in research practice. Therefore, at present, when carrying out work related to the search for optimal conditions for obtaining thin wear-resistant layers on the surface of metals modified with ultrafine particles of minerals, comparative measurements performed by one measurement method are recommended.
APA, Harvard, Vancouver, ISO, and other styles
10

Velichko, S. A., I. N. Kravchenko, P. V. Chumakov, O. V. Barmina, and Yu A. Kuznetsov. "Determining the Young Modulus of Electrospark Coatings by Instrumental Indentation." Journal of Machinery Manufacture and Reliability 51, no. 7 (2022): 613–18. http://dx.doi.org/10.3103/s1052618822070184.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Instrumental indentation"

1

Chollacoop, Nuwong 1977. "Computational and experimental study of instrumented indentation." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/16624.

Full text
Abstract:
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2004.<br>Includes bibliographical references (p. 167-175).<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>The effect of characteristic length scales, through dimensional and microstructural miniaturizations, on mechanical properties is systematically investigated by recourse to instrumented micro- and/or nanoindentation. This technique is capable of extracting mechanical properties accurately down to nanometers, via rigorous interpretation of indentation response. Such interpretation requires fundamental understandings of contact mechanics and underlying deformation mechanisms. Analytical, computational and experimental approaches are utilized to elucidate specifically how empirical constitutive relation can be estimated from the complex multiaxial stress state induced by indentation. Analytical formulations form a framework for parametric finite element analysis. The algorithms are established to predict indentation response from a constitutive relation (hereafter referred to as "forward algorithms") and to extract mechanical properties from indentation curve (hereafter referred to as "reverse algorithms"). Experimental verifications and comprehensive sensitivity analysis are conducted. Similar approaches are undertaken to extend the forward/reverse algorithms to indentations using two ore more tip geometries. Microstructural miniaturization leads to novel class of materials with a grain size smaller than 100 nm, hereafter referred to as "nanocrystalline" material. Its mechanical properties are observed to deviate greatly from the microcrystalline counterparts.<br>(cont.) In this thesis, experimental, analytical and computational approaches are utilized to elucidate the rate and size dependent mechanical properties observed in nanocrystalline materials. Indentations, as well as micro-tensile tests, are employed to attain various controllable deformation rates. A simple analytical model, hereafter referred to as Grain-Boundary-Affected-Zone (GBAZ) model, is proposed to rationalize possible rate-sensitivity mechanism. Systematic finite element analysis integrating GBAZ model is conducted with calibration against the experiments. The same GBAZ model, further utilized in the parametric finite element study, is capable of predicting the inverse Hall-Petch-type phenomenon (weakening with decreasing grain size) at the range consistent with the literature.<br>by Nuwong Chollacoop.<br>Ph.D.
APA, Harvard, Vancouver, ISO, and other styles
2

Yetna, N'Jock Michel. "Développement des méthodes d’analyse en indentation instrumentée." Thesis, Lille 1, 2014. http://www.theses.fr/2014LIL10133/document.

Full text
Abstract:
La détermination des propriétés mécaniques des matériaux est souvent réalisée par indentation instrumentée. Cette technique présente l’avantage d’être locale et de déterminer de nombreuses propriétés mécaniques. Toutefois, l’obtention de valeurs fiables nécessite à la fois la connaissance du mode de déformation autour de l’empreinte et une valeur précise de l’aire de contact entre indenteur et matériau. Dans ce travail, nous proposons de considérer le rapport entre la profondeur résiduelle et la profondeur maximale d’indentation pour connaître le mode de déformation. Il y a formation de bourrelets ou déflection des faces de l’empreinte selon que ce rapport soit supérieur ou inférieur à 0,86. Ensuite, nous calculons la dureté à partir du travail d’indentation en prenant en compte le défaut de pointe dans le calcul du volume de l’empreinte ce qui fait disparaitre l’effet de taille. Nous proposons aussi d’estimer le module d’élasticité à partir de différentes profondeurs de pénétration. En nanoindentation, le modèle d’Oliver et Pharr est souvent et, à juste titre, utilisé pour calculer l’aire de contact. Malheureusement, il nécessite le mode de mesure de la rigidité en continue, mode qui n’est pas disponible sur tous les instruments de mesure. C’est pourquoi nous proposons une nouvelle fonction d’aire qui ne nécessite que la connaissance du défaut de pointe pris comme étant la longueur de la troncature du sommet de l’indenteur. Finalement, ce travail de thèse propose une méthodologie d’analyse pour l’obtention de propriétés fiables et représentatives du comportement mécanique du matériau<br>The determination of the mechanical properties of materials is often performed by instrumented indentation. This technique is local and allows determining many mechanical properties. However, obtaining reliable values requires the knowledge of the deformation mode around the indent and an exact value of the contact area between the indenter and the material.In this work, we propose to consider the ratio between the residual depth and the maximum depth to predict the deformation mode. For a ratio higher than 0.86, piling-up appears whereas sinking-in is present for lower ratios. Afterwards, we calculate the hardness from the indentation work by taking into account the tip defect in the calculation of the volume of the indent which allows eliminating the indentation size effect. We also suggest the estimation of the elastic modulus by considering only the data related to the different indentation depths. In nanoindentation, the model of Oliver and Pharr is often and rightly employed to calculate the contact area. Unfortunately, it requires the CSM mode to be validly employed, which is not available on all the indentation instruments. That is why we propose a new contact area function which only requires the knowledge of the tip defect equivalent to the length between the rounded and the ideal tips. Finally, this PhD work proposes a methodology for analyzing indentation data in order to obtain consistent and representative mechanical properties of the material
APA, Harvard, Vancouver, ISO, and other styles
3

Phan, Trinh Ngoc. "Measurement of Bitumen Relaxation Modulus with Instrumented Indentation." Thesis, KTH, Väg- och banteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-96674.

Full text
Abstract:
Instrumented indentation testing was used to determine viscoelastic properties of bitumen, i.e. shear relaxation modulus. Review of previous studied reveals that indentation testing technique has been drawing increasing attempts in investigations of binder material mechanical properties. Various properties of bitumen, e.g. elastic, viscoelastic, have been successfully determined by indentation testing at different scales and test conditions. The response of bitumen to indentation was studied extensively under a wide range of test parameters such as temperature, loading rate, indenter geometry, etc. This experimental tool was also applied to asphalt cements grading and microstructure study. However, there have been limited numbers of studies at macro levels with the use of spherical indenters to characterize bitumen properties. This motivated the present study. Spherical indentations have been performed with balls of different curvature radii at -5 oC. Load – displacement curves have been measured and used to determine the relaxation moduli of the studied bitumen. Repeatability of the measurements has been evaluated. Obtained results were compared with the observations from DSR relaxation test. The influence of the measurement scale and load level on the results of instrumented indentation testing has been investigated. It has been found that instrumented indentation was able to characterize accurately the viscoelastic behavior of bitumen which can be described by Prony series and agrees well with the results from DSR tests. Nevertheless, the elastic solution failed to produce a proper description of bitumen response during loading phase.
APA, Harvard, Vancouver, ISO, and other styles
4

Tannenbaum, Jared Michael. "The development of a portable instrumented indentation system." Morgantown, W. Va. : [West Virginia University Libraries], 2008. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5931.

Full text
Abstract:
Thesis (M.S.)--West Virginia University, 2008.<br>Title from document title page. Document formatted into pages; contains xiv, 127 p. : ill. Includes abstract. Includes bibliographical references (p. 61-62).
APA, Harvard, Vancouver, ISO, and other styles
5

Nayyeri, Ghazal. "Examination of deformation in magnesium using instrumented spherical indentation." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/57775.

Full text
Abstract:
This investigation examines the use of instrumented indentation to extract information on the deformation behaviour of commercial purity magnesium, AZ31B (Mg-2.5Al-0.7Zn), and AZ80 (Mg-8Al-0.5Zn). In particular, indentation was conducted with spherical indenter using a range of spherical indenter tip radii of R = 1 µm to 250.0 µm. A detailed examination has been conducted for the load-displacement data combined with three-dimensional electron backscatter diffraction (3D EBSD) characterization of the deformation zone under the indenter after the load has been removed. It was proposed that the initial deviation of the load-depth data from the elastic solution of Hertz is associated with the point when the critical resolved shear stress (CRSS) for basal slip is reached. Also, it was observed that reproducible large discontinuities could be found in the loading and the unloading curves. It is proposed that these discontinuities are related to the nucleation and growth of {101̅2} extension twins during loading and their subsequent retreat during unloading. For the case of c-axis indentation, 3D EBSD studies showed that the presence of residual deformation twins depended on the depth of the indent. Further, a detailed analysis of the residual geometrically necessary dislocation populations in the deformation zone was conducted based on the EBSD data. It was found that residual basal <a> dislocations were dominant in the deformation zone. This was consistent with crystal plasticity finite element method calculations where only basal slip was allowed albeit with some differences that can be rationalized by the presence of {101̅2} extension twins in the experiments. Using different spherical diamond tips, it was concluded that the quantitative values for the RSS0.1% offset for basal slip of magnesium obtained from the indentation test is indentation size dependent and it increases linearly with the inverse square root of the misorientation gradient under the indent. Finally, effects of chemistry on the CRSS for basal slip was also successfully measured by conducting the indentation tests on AZ31B and AZ80 alloys. It was shown that the CRSS of basal slip increases linearly with c¹′², where c is the concentration of Al.<br>Applied Science, Faculty of<br>Materials Engineering, Department of<br>Graduate
APA, Harvard, Vancouver, ISO, and other styles
6

Roberto-Pereira, Francisco Fernando. "Extraction of superelastic parameter values from instrumented indentation data." Thesis, University of Cambridge, 2019. https://www.repository.cam.ac.uk/handle/1810/290218.

Full text
Abstract:
Interest in superelastic (and shape memory) materials continues to rise, and there is a strong incentive to develop techniques for monitoring of their superelastic characteristics. This is conventionally done via uniaxial testing, but there are many advantages to having a capability for obtaining these characteristics (in the form of parameter values in a constitutive law) via indentation testing. Specimens can then be small, require minimal preparation and be obtainable from components in service. Interrogation of small volumes also allows mapping of properties over a surface. On the other hand, the tested volume must be large enough for its response to be representative of behaviour. Precisely the same arguments apply to more "mainstream" mechanical properties, such as yielding and work hardening characteristics. Indeed, there has been considerable progress in that area recently, using FEM simulation to predict indentation outcomes, evaluating the "goodness of fit" for particular sets of parameter values and converging on a best-fit combination. A similar approach can be used to obtain superelastic parameters, but little work has been done hitherto on sensitivities, uniqueness characteristics or optimal methodologies and the procedures are complicated by limitations to the constitutive laws in current use. The current work presents a comprehensive examination of the issues involved, using experimental (uniaxial and indentation) data for a NiTi Shape Memory Alloy. It was found that it is possible to obtain the superelastic parameter values using a single indenter shape (spherical). Information is also presented on sensitivities and the probable reliability of such parameters obtained in this way for an unknown material.
APA, Harvard, Vancouver, ISO, and other styles
7

Poisl, William Howard III. "Mechanical and viscoelastic properties of materials by instrumented indentation." Diss., The University of Arizona, 1995. http://hdl.handle.net/10150/187224.

Full text
Abstract:
The mechanical properties of small volumes of material have received increasing attention in the past decade due to the extensive use of films and coatings in microelectronic devices and as protection against wear and corrosion. The mechanical properties of thin films of a given material are often substantially different from those of the identical bulk material. Instrumented, or ultra-low load, indentation instruments are capable of measuring the elastic, plastic and time-dependent properties of small volumes of materials. A two stage area model has been developed to predict the variation in measured hardness with depth of penetration for soft films on hard substrates. The model is able to predict the variation for depths of penetration less than and greater than the film thickness. The model incorporates constraints on the film hardness based on the uniaxial compression of a flat cylindrical disk. Friction, or adhesion, at the film/substrate interface causes the film hardness to increase as the depth of penetration increases. However, the film hardness is not allowed to increase beyond the substrate hardness. The model is compared to experimental hardness versus depth data for three different film/substrate systems with different levels of adhesion. Time-dependent properties of materials are obtainable from instrumented indentation tests by measuring the force and displacement as a function of time. Indentation creep experiments on a linear viscoelastic material, amorphous selenium, were used to establish the relationship between indentation strain rate and the strain rate measured in conventional creep tests. Equations for determining viscosity from indentation tests were also obtained. Finally, it was shown that stress relaxation functions for viscoelastic materials may be obtainable from indentation creep experiments.
APA, Harvard, Vancouver, ISO, and other styles
8

GARCíA, GUZMáN Jaime. "Modélisation du facteur de correction beta en indentation instrumentée." Thesis, Reims, 2017. http://www.theses.fr/2017REIMS043.

Full text
Abstract:
Avec l’avènement des NEMS, MEMS, films minces et autres revêtements, la caractérisation des propriétés mécaniques à uneéchelle locale est primordiale. A cet effet, l’essai d’indentation instrumentée permet l’acquisition continue de la réponse (courbeforce – profondeur de pénétration) d’un matériau à la pénétration d’un indenteur de géométrie donnée. Le post-traitement d’unetelle courbe permet la détermination de propriétés telles que le module d’indentation ou la dureté. Cette analyse est basée surla théorie du contact élastique, qui suppose une géométrie axisymétrique parfaite de la pointe d’indentation, un comportementpurement élastique du matériau, et la non-prise en compte des déplacements radiaux dans la zone de contact. En pratique, ceshypothèses sont souvent mises en défaut : les indenteurs sont généralement des pyramides à 3 pans (Berkovich, Cube Corner)ou 4 pans (Vickers, Knoop) présentant un émoussement de la pointe, et le comportement mécanique des matériaux est souventcomplexe. La correction de la relation de Sneddon, utilisée dans la méthode d’Oliver et Pharr pour l’analyse des essais denanoindentation, est donc nécessaire. Dans le cadre de cette thèse, nous nous sommes intéressés à la détermination de ce facteurde correction, qui n’est pas une valeur universelle ni unique comme le préconisent certains auteurs. Il dépend notamment de lapression exercée par la pointe d’indentation et du matériau sollicité. Cette étude s’est faite sur la base de la détermination de laloi de comportement d’un des matériaux standards utilisés pour la calibration de l’essai de nanoindentation, la silice fondue.Ce matériau présente un comportement mécanique spécifique : sa déformation anélastique s’effectue par un mécanisme dedensification. Dans un premier temps, les paramètres de cette loi de comportement sont identifiés par une approche inversecombinant la simulation numérique 3D de l’essai d’indentation à l’optimisation de la fonction objectif au moyen d’unalgorithme génétique. Le facteur de correction est ensuite déterminé pour deux géométries de pointes et à différentes valeursdu rapport adimensionnel "profondeur de pénétration/rayon de pointe". La méthodologie proposée a été appliquée à ladétermination du module d’indentation d’un acier inox<br>With the advent of NEMS, MEMS, thin films and other coatings, the characterization of local mechanical properties is achallenge. For this purpose, the instrumented indentation test allows for the continuous acquisition of the response (loadpenetration depth) of the material using an indenter of given geometry. The post-processing of such a curve allows thedetermination of the indentation modulus or the hardness of that material. This analysis relies on the elastic contact theory,which assumes an axisymmetric and perfect indenter, a purely elastic behaviour, and no radial displacements in the contactarea. In practice, those assumptions are defeated: indenters shapes are rather three-sided (Berkovich, Cube Corner) or foursided (Vickers, Knoop) pyramids, with blunted tips. Furthermore, mechanical behaviour is rather complex. The introductionof a correction factor in the Sneddon’s relationship, on which is based the Oliver and Pharr method for the analysis ofnanoindentation data is then necessary. Whithin the scope of this work, we aimed at determining this correction factor, whichhas not a unique nor a universal value, as recommended by some authors. It depends on the pressure distribution beneath theindenter and on the tested material. This study is based on the identification of the constitutive law of one of the referencespecimen used for calibration of the nanoindentation test, namely fused silica. The latter exhibits a specific mechanicalbehaviour, its anelastic deformation being achieved by a densification mechanism. In a first step we have determined the modelparameters by an inverse approach combining the 3D numerical simulation of the indentation test with the optimization of theobjective function using a genetic algorithm. The correction factor is then determined for two tip geometries and at severalpenetration depth over tip radius adimensional ratios. The proposed methodology was applied to the determination of theindentation modulus of an inox steel
APA, Harvard, Vancouver, ISO, and other styles
9

Xia, Yang. "A robust statistical method for determining material properties and indentation size effect using instrumented indentation testing." Thesis, Compiègne, 2014. http://www.theses.fr/2014COMP1982/document.

Full text
Abstract:
L'indentation instrumentée est un outil pratique et puissant pour sonder les propriétés mécaniques des matériaux à petite échelle. Cependant, plusieurs erreurs (rugosité de surface, effet de taille d’indentation, la détermination de premier point de contact, etc.) affectent l'essai d’indentation instrumentée (e.g. non reproductibilité de la courbe d’indentation) et conduisent à des imprécisions dans la détermination des propriétés mécaniques des matériaux analysés. Une approche originale est développée dans cette thèse pour la caractérisation précise des propriétés mécaniques des matériaux. Cette approche fondée sur une analyse statistique des courbes d’indentation avec la prise en compte d’erreur dans la détermination du premier point de contact et des effets de la rugosité de surface. L’approche est basée sur une minimisation de la distance (défini comme l'erreur de la profondeur de contact initiale) entre l’ensemble des courbes expérimentales et celles simulées par le modèle de Bernhard de manière à générer une courbe maitresse « unique » représentative du faisceau de courbes expérimentales. La méthode proposée permet de calculer à partir de cette courbe maitresse la macro-dureté et le module d’Young du matériau en tenant compte des erreurs dues à la rugosité de surface et à l'effet de taille en indentation pour les faibles profondeurs de pénétration. La robustesse de la méthode est prouvée par son application à différents groupes d’échantillons, i.e. panels de matériaux à propriétés mécaniques diverses, différents traitements de surface (polissage, sablage) et différentes pointes d’indentation permettant de générer différents états de contraintes locaux. Une liaison quantitative entre la rugosité de surface et l'écart type de l'erreur de la profondeur de contact initiale est établie grâce à une analyse multi- échelle de la rugosité de la surface. La méthode proposée permet de caractériser les propriétés mécaniques des matériaux sans avoir recours à la préparation de surface pouvant potentiellement altérer ses propriétés (e.g. génération de contraintes résiduelles, contamination de surface…)<br>Instrumented indentation is a practical and powerful tool for probing the mechanical properties of materials at small scales. However, several errors (surface roughness, indentation size effect, determination of first contact point, etc…) affect the instrumented indentation testing (e.g. the low reproducibility of the indentation curves) and lead to inaccuracies in the determination of mechanical properties of materials analyzed. An original approach is developed in this thesis for the accurate characterization of the mechanical properties of materials. This approach is established by a statistical analysis of the indentation curves with taking account of error in determining the first contact point and effects of the surface roughness. This approach is basing on a minimization of the distance (defined as the initial contact depth error) between the experimental indentation curves and the ones simulated with Bernhard’s model in order to generate a “unique” representative curve which enables to represent all the experimental curves. The proposed method permits to calculate the macro-hardness and the Young’s modulus of materials from this representative curve with the consideration of the errors due to the surface roughness and the indentation size effect for shallow penetration. The robustness of the method is proved by its application to different groups of specimens, i.e. different materials with various mechanical properties, different surface preparation methods (polishing, sandblasting) and different indenter tips to generate different states of local stresses. A quantitative link between the surface roughness and the standard deviation of initial contact depth error is established by a multi-scale surface roughness analyzing. The proposed method enables to characterize the mechanical properties of materials without resorting to the surface preparation which may potentially alter its properties (e.g. generation of residual stresses, surface contamination ...)
APA, Harvard, Vancouver, ISO, and other styles
10

Yan, Jin. "Aspects of instrumented indentation with applications to thermal barrier coatings." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 177 p, 2007. http://proquest.umi.com/pqdweb?did=1397913961&sid=17&Fmt=2&clientId=8331&RQT=309&VName=PQD.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Instrumental indentation"

1

International Workshop on Instrumented Indentation (1995 San Diego, Calif.). Conference proceedings: International Workshop on Instrumented Indentation, San Diego, CA, April 22-23, 1995. Edited by Smith Douglas 1954-, University of California, San Diego. Institute for Mechanics and Materials., and Standard Reference Materials Program (National Institute of Standards and Technology (U.S.)). U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1996.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Ma, Dejun. Cai liao li xue xing neng yi qi hua ya ru ce shi yuan li: Principles of measuring mechanical properies of materials by instrumented indentation. Guo fang gong ye chu ban she, 2010.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Herrmann, Konrad, ed. Hardness Testing. ASM International, 2011. http://dx.doi.org/10.31399/asm.tb.htpa.9781627083461.

Full text
Abstract:
Hardness Testing: Principles and Applications is an in-depth study of one of the most fundamental properties of materials and the tools and techniques that have been developed to measure it. Hardness, as defined in the first chapter, is a type of resistance to deformation, the roots of which lie in the packing density of atoms and the bonding forces that keep them in place. As subsequent chapters explain, the hardness of metals, plastics, rubber, and ceramics can be measured as a response to an applied stress (whether static or dynamic), via noncontact sensing, or through an instrumented indenter. Most of the hardness tests used in industry, including Rockwell, Vickers, Brinell, and Knoop methods, are based on static measurements that have become standardized over the years. The practices and procedures associated with these methods are described in detail along with relevant theory and practical considerations such as calibration requirements and uncertainty concerns. Other chapters provide similar information on dynamic tests, including Shore and Leeb methods, nondestructive tests, including electromagnetic, photothermal, and ultrasonic sensing, and indentation measurement techniques. The chapters also include application examples as well as guidelines and recommendations for selecting and implementing hardness tests. For information on the print version, ISBN 978-1-61503-832-9, follow this link.
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Instrumental indentation"

1

Cheng, Yang-Tse. "Obtaining Viscoelastic Properties from Instrumented Indentation." In Time Dependent Constitutive Behavior and Fracture/Failure Processes, Volume 3. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-9794-4_18.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Jiménez-Piqué, Emilio, Yves Gaillard, and Marc Anglada. "Instrumented Indentation of Layered Ceramic Materials." In Key Engineering Materials. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-424-3.107.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Chen, X., L. Liu, N. Ogasawara, and N. Chiba. "Uniqueness of Elastoplastic Properties Measured by Instrumented Indentation." In Handbook of Nonlocal Continuum Mechanics for Materials and Structures. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-22977-5_22-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Liu, L., Xi Chen, N. Ogasawara, and N. Chiba. "Uniqueness of Elastoplastic Properties Measured by Instrumented Indentation." In Handbook of Nonlocal Continuum Mechanics for Materials and Structures. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-58729-5_22.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Hay, Jennifer, Verena Maier, Karsten Durst, and Mathias Göken. "Strain-Rate Sensitivity (SRS) of Nickel by Instrumented Indentation." In MEMS and Nanotechnology, Volume 6. Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-4436-7_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Santos, Luis S., and Hugh A. Bruck. "Cyclical Instrumented Indentation Testing for Fatigue Characterization of Metals." In Mechanics of Composite, Hybrid and Multifunctional Materials, Fracture, Fatigue, Failure and Damage Evolution, Volume 3. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-86741-6_16.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Wang, Zhongkui, Kousuke Kadoma, and Shinichi Hirai. "An Indentation-Type Instrument for Measuring Soft Tissue Elasticity." In Innovation in Medicine and Healthcare 2017. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-59397-5_13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Wald, M. J., J. M. Considine, and K. T. Turner. "Improved Instrumented Indentation of Soft Materials through Surface Deformation Measurements." In Mechanics of Biological Systems and Materials, Volume 5. Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-4427-5_20.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Cao, Yan-Ping, and Ke-Lin Chen. "Theoretical and computational modelling of instrumented indentation of viscoelastic composites." In Time Dependent Constitutive Behavior and Fracture/Failure Processes, Volume 3. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-9794-4_17.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Wang, H. X., Jing He Wang, and Shen Dong. "Nanoindentation Size Effect of KDP Crystal by Instrumented Indentation Testing." In Optics Design and Precision Manufacturing Technologies. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-458-8.188.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Instrumental indentation"

1

Kania, Richard, Andy Russell, and Ming Gao. "Advanced Indentation Systems for Tensile Properties Evaluation of in-Service Pipelines." In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04170.

Full text
Abstract:
Abstract Structural integrity assessment of pipelines requires the knowledge of a combination of parameters, one of the most critical of which is materials' tensile properties. API standard testing methods for tensile properties involve the (destructive) testing of bulky specimens. In pipelines where records may be unavailable and the extraction of samples is not feasible, this type of approach is not viable, and alternative technologies are required. To overcome these difficulties, advanced indentation technology (AIT) has recently been developed, and commercial instruments are now available. The major advantage of this technology is that it is non-destructive. This paper evaluates the technology and summarises the experience with two commercial instruments in terms of their accuracy, repeatability and reliability. Factors that influence the accuracy of in-field measurements, and examples of in-field application, are presented.
APA, Harvard, Vancouver, ISO, and other styles
2

Delshad, Pooya, Jonathan Gibbs, Peter Martin, Peter Veloo, Emily Brady, and Jeffrey Kornuta. "Preliminary Assessment of the Effects of Surface Preparation on Instrumented Indentation Testing (IIT)." In 37th International Pipeline Pigging and Integrity Management Conference 2025. Clarion Technical Conferences, 2025. https://doi.org/10.52202/078572-0018.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Albrecht, Jan, and Sven Rzepka. "Determination of the Adhesive Strength of Monocrystalline Layers as a Thin Film on a Silicon Substrate by Means of Instrumented Indentation Testing." In 2024 IEEE 26th Electronics Packaging Technology Conference (EPTC). IEEE, 2024. https://doi.org/10.1109/eptc62800.2024.10909930.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Rota, Martina, Alberto Grigis, Alessandro Mancini, Carlotta Carrubba, and Andrea Bonfanti. "Assessing Hardening Particles Distribution in Composite Coatings." In CONFERENCE 2025. AMPP, 2025. https://doi.org/10.5006/c2025-00222.

Full text
Abstract:
CerMet coatings for brake discs are emerging as innovative technological solution to limit wear of brake devices and the corresponding emission of particulates into the environment. These coatings are usually composed by a dispersion of hard ceramic particles (Cer) in a metallic matrix (Met). Fine tuning of the ratio between Cer and Met components as well as the homogeneity of dispersion of hard particles into the matrix are pivotal parameters defining physico-mechanical properties of such composite coatings, such as their hardness and wear resistance. This contribution proposes an analytical methodology based on scanning electron microscopy (SEM) and image analysis (IA) to evaluate the distribution of ceramic particles in metal matrix composing CerMet coatings for brake discs. The methodology is demonstrated effective in assessing correlation between such parameters and the hardness of the coating, as measured by instrumented indentation carried out on investigated metallographic sections. In particular, a linear decreasing trend is observed in the hardness of the produced coating when decreasing the Cer to Met ratio, moving from maximum values of 670 HV to minimum values of 350 HV for Cer:Met ratio of respectively 24:76% and 6:94%.
APA, Harvard, Vancouver, ISO, and other styles
5

Filippov, A. A. "Determination of the dependences of the mechanical characteristics of heterogeneous material on the content of nanoparticles by instrumental indentation." In 13TH INTERNATIONAL SCIENTIFIC CONFERENCE ON AERONAUTICS, AUTOMOTIVE AND RAILWAY ENGINEERING AND TECHNOLOGIES (BulTrans-2021). AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0100709.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

de Oliveira, Geovanio Lima, Celio A. Costa, and Marysilvia F. Costa. "Evaluation of Aged PVDF by Instrumented Indentation Technique." In ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/omae2015-41538.

Full text
Abstract:
Instrumented indentation (IIT) is proposed as an alternative mechanical evaluation technique to identify ageing of semicrystalline thermoplastic polymers such as PVDF. This technique does not require special geometries such as standard tensile experiments and allows following changes in mechanical properties as deeper penetration depth are imposed. Therefore, it is able to detect differences in mechanical properties along the thickness of the material. For PVDF aged in crude oil, it was found that for shallow indentations the viscoelasticity effects are minimized. For deeper indentations it was possible to observe a loss of rigidity with aging time. The technique also allows to determine yield behavior.
APA, Harvard, Vancouver, ISO, and other styles
7

Nohava, J., Š. Houdková, CZ Plzeň, P. Haušild, and R. Enžl. "Comparison of Isolated Indentation and Grid Indentation Methods for HVOF Sprayed Cermets." In ITSC2011, edited by B. R. Marple, A. Agarwal, M. M. Hyland, et al. DVS Media GmbH, 2011. http://dx.doi.org/10.31399/asm.cp.itsc2011p0703.

Full text
Abstract:
Abstract This paper compares the results of two approaches of instrumented indentation for characterization of mechanical properties of HVOF coatings. Three types of industrially used HVOF sprayed coatings (Cr3C2-NiCr, WC-Co, (Ti, Mo)(C,N)-NiCo) were selected. The indentation methods applied were: isolated nanoindentation in metallic matrix and carbides with 2 mN peak load and grid indentation with 2 mN peak loads, comprising 400 indentations. The results of the isolated indentation revealed hardness and elastic modulus of the individual phases with surprisingly low standard deviation and in good agreement with the corresponding bulk equivalent. The grid indentation method, based on statistical evaluation of a large number of indentations, was influenced by the carbide-matrix interface, which gave rise to a strong third peak apart from the two peaks corresponding to the hard carbides and softer metallic matrix. This makes the statistical analysis much more complex than using simple bimodal Gaussian fit for separation of matrix and carbide properties. Nevertheless, the results of both grid indentation and isolated nanoindentation compared with microindentation values obtained at higher loads gave important information about the cohesion of the coatings.
APA, Harvard, Vancouver, ISO, and other styles
8

Golubenko, Alex, and Mykola Minakov. "Investigation of anomalous strengthening on the near-surface layer of ADI at the influence of the TRIP effect by durometric methods." In IXth INTERNATIONAL SAMSONOV CONFERENCE “MATERIALS SCIENCE OF REFRACTORY COMPOUNDS”. Frantsevich Ukrainian Materials Research Society, 2024. http://dx.doi.org/10.62564/m4-ag1431.

Full text
Abstract:
Durometric methods have been used to study the strengthening mechanisms of the surface layer of Austempered Ductile Iron (ADI) during friction [1]. The motivation of the work is to create scientifically based approaches to optimize the composition, structure and manufacturing conditions of soil tillage machinery. ADI samples (3.44%C; 2.62%Si; 0.024%Cr; 0.54%Cu; 0.71%Ni) with different Mn contents: 0.78% and 0.24%(wt.) in both initial and deformed states was tested. The ADI structure was obtained by austenitizing heating at 900°C for 30min. followed by isothermal quenching in liquid tin at 350°C. The content of austenite and martensite in the initial and post-friction states was determined using X-ray analysis on DRON-3M. Hardness was measured using PMT-3 at a load P=0.2N. Instrumental indentation, recording the load P–indenter displacement h curve, was done using a Micron-GAMMA (P=0.2N). Pop-ins (an increase in the depth of indenter penetration without an increase in load) on the P(h) curves of ADI indicate martensitic transformations during indentation. The effect is observed at P~0.1N and h~1.5µm. Microhardness in the initial material and after friction showed that on the wear surface one third of the indents has hardness higher than the max. hardness of the initial sample (~6.5GPa) and corresponds to the hardness of martensite (7.5–9.5GPa). X-ray analysis of near-surface layers confirmed the transformation of most residual austenite into martensite. Due to martensitic transformation the average hardness after friction increases from 4.9GPa to 6.9GPa. Intensive deformation strengthening of bainitic cast iron occurs due to martensitic transformation induced by plastic deformation in the wear zone–the TRIP effect (Transformation-Induced Plasticity). The proposed research methods enable the analysis of the influence of phase composition and structural state on the effectiveness of strengthening the surface layer of ADI products under the influence of the TRIP effect.
APA, Harvard, Vancouver, ISO, and other styles
9

Bangert, H., A. Wagendristel, and K. H. Guenther. "Ultra-Microhardness Testing and Mechanical Properties of Ceramic Optical Thin Films." In Optical Interference Coatings. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/oic.1992.ofa6.

Full text
Abstract:
We evaluated ion plated and, for comparison, electron beam evaporated thin films with an ultra-microhardness tester used with an optical microscope. Implementations of the instrument for use inside a scanning electron microscope1,2,3 and with a high resolution optical microscope4 have been described in sufficient detail elsewhere. Figure 1 shows typical indentations made with a Vickers diamond in a rather thick ion plated single layer of TiO2 in comparison with an indentation obtained in an electron beam evaporated film of the same material and similar thickness. The ultra-microhardness values resulting from the measurement of the imprint diagonal differ whether the indentations are observed and measured with an optical microscope or with a scanning electron microscope.
APA, Harvard, Vancouver, ISO, and other styles
10

Switzner, Nathaniel, Bill Amend, Peter Martin, and Joel Anderson. "What Are My Options? Review of Non-Destructive Mechanical Tests for Steel Linepipe Yield Strength." In 2024 15th International Pipeline Conference. American Society of Mechanical Engineers, 2024. https://doi.org/10.1115/ipc2024-133981.

Full text
Abstract:
Abstract Methods for non-destructive estimation of steel linepipe yield strength (YS) and ultimate tensile strength (UTS) are surveyed, recognizing that YS is important for grade estimation. Operators seek rapid, accurate, precise, reliable, and repeatable non-destructive testing methods to estimate pipe YS as part of the process to determine Maximum Allowable Operating Pressure (MAOP), burst pressure, and to perform other critical calculations. We provide a description of several methods to estimate steel linepipe YS. First, several methods of hardness testing are discussed, with the most focus being placed on two portable hardness measurement methods that have been tested extensively: ultrasonic contact impedance (UCI) and portable Rockwell testing. These two instruments work well in the field and complement one another. For example, if operating/vibrating pipe degrades UCI accuracy, portable Rockwell hardness testing can be used instead. Several additional aspects of these and other hardness tests are discussed, such as surface preparation, wall thickness requirements, indentation size, and the necessity of orienting the hardness tester normal to the surface. Note that hardness testing is not often used to estimate YS directly, but rather to establish a lower bound estimate for YS. Second, several commercial devices have been developed to provide a direct estimate of YS, and three of them are extensively reviewed in this work, including Instrumented Indentation Testing (IIT), Hardness, Strength, and Ductility (HSD), and Profilometry-based Indentation Plastometry (PIP). Some literature data are not comparable due to different sample groups and testing conditions. Therefore, the authors tested these three instruments on a uniform set of pipes and provide a brief “at-a-glance” comparison of IIT, HSD, and PIP. The results indicate that the root mean squared error (RMSE) for the three instruments for YS ranges from 4–5 ksi for YS and 3–6 ksi for UTS. Additionally, the mean absolute percentage error (MAPE) for the three instruments ranged from 6–7% for YS and 3–5% for UTS. IIT performed the best for YS estimation, and HSD performed the best for UTS estimation, but the differences among all three instrument results were small. An additional approach for estimating strength based on composition and microstructure alone (PRCI’s Checkmate) is also discussed. For each method the discussion includes the mechanism (working principle), logistics, dimensional considerations, potential pitfalls, and example models of test instruments. By offering a thorough overview, we aim to assist operators in identifying the most suitable non-destructive test for their specific requirements.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Instrumental indentation"

1

VanLandingham, Mark R., Thomas F. Juliano, and Matthew J. Hagon. Instrumented Indentation of M855 Cartridge, Core, and Jacket Materials. Defense Technical Information Center, 2005. http://dx.doi.org/10.21236/ada439855.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Clayton, John, Daniel Casem, and Jeffrey Lloyd. Finite Element Modeling for Constitutive Property Determination from Instrumented Dynamic Spherical Indentation. DEVCOM Army Research Laboratory, 2023. http://dx.doi.org/10.21236/ad1200256.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Instrumental indentation' for particular source types:
Journal articles Dissertations / Theses
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography