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Relevant bibliographies by topics / Strain Increment Ratio

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Journal articles
Dissertations / Theses
Book chapters
Conference papers

Academic literature on the topic 'Strain Increment Ratio'

Author: Grafiati

Published: 11 December 2022

Last updated: 25 January 2023

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Journal articles on the topic "Strain Increment Ratio"

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SUZUKI, Kiichi, Eiji YANAGISAWA, and Takahiro SUGANO. "Relationship between Principal Deviatoric Strain Increment Ratio and Principal Deviatoric Stress Increment Ratio of Sand." Journal of applied mechanics 2 (1999): 363–69. http://dx.doi.org/10.2208/journalam.2.363.

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Vaid, Y. P., and A. Eliadorani. "Undrained and drained (?) stress-strain response." Canadian Geotechnical Journal 37, no. 5 (2000): 1126–30. http://dx.doi.org/10.1139/t00-036.

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The deformation response of saturated soils to a total stress increment at the ambient void ratio and effective stress state is shown to be dependent on the direction of the effective strain increment. It is argued that in a given field problem, most soil elements neither deform fully drained nor undrained, but do so partially drained. The degree of partial drainage controls the direction of the effective stress increment and hence the deformation response. Experimental data are presented which demonstrate how shear stiffness changes with the direction of effective stress increment as a functi

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Li, Min, and Hong Nan Li. "Effects of Strain Rate on Reinforced Concrete Beam." Advanced Materials Research 243-249 (May 2011): 4033–36. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.4033.

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The strain-rate effects of reinforced concrete beams are studied in this paper. Considering the strain-rate effects of structural material, dynamic responses of reinforced concrete beams subjected to monotonic loading and cyclic loading at different loading rates that might be experienced during earthquakes are simulated using the nonlinear finite element program ABAQUS. The influences of loading rate on loading capability and failure mode of reinforced concrete beams are investigated. The results show that as the loading rate increases, the loading capability increases, the increment is assoc

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Kiefer, B. V., and P. D. Hilton. "Combined Viscous and Plastic Deformations in Two-Dimensional Large Strain Finite Element Analysis." Journal of Engineering Materials and Technology 107, no. 1 (1985): 13–18. http://dx.doi.org/10.1115/1.3225764.

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Capabilities for the analysis of combined viscous and plastic behavior have been added to an existing finite element computer program for two-dimensional elastic-plastic calculations. This program (PAPSTB) has been formulated for elastic-plastic stress and deformation analyses of two-dimensional and axisymmetric structures. It has the ability to model large strains and large deformations of elastic-perfectly plastic, multi-linear hardening, or power-hardening materials. The program is based on incremental plasticity theory with a von Mises yield criterion. Time dependent behavior has been intr

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Negussey, D., and Y. P. Vaid. "Sand deformation under proportional loading." Canadian Geotechnical Journal 23, no. 2 (1986): 155–63. http://dx.doi.org/10.1139/t86-025.

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A fundamental experimental study of sand behaviour under low stress ratio proportional loading wherein all strain components are contractant is presented. Experimentally observed behaviour under stress conditions of the triaxial test led to a coherent framework for representing proportional loading stress–strain response. The stress–strain relationship formulated incorporates relative density as an inherent independent state variable and does not require appeal to material isotropy. Key words: triaxial test, proportional loading, sand, relative density, energy density, stress increment, strain

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Forysiewicz, Monika, Leon Kukielka, and Katarzyna Gotowala. "Finite Element Simulation of Physical Phenomena in Real Conditions of a Single Grain Cutting Process." Materials Science Forum 862 (August 2016): 288–97. http://dx.doi.org/10.4028/www.scientific.net/msf.862.288.

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The cutting process was presented as a real object as well as its physical and mathematical modelling. For the description of the non-linear phenomena, at the typical increment ratio, the updated Lagrange's description was used. Adequate deformation and stress increments measurements were used, e.g. Green-Lagrange's deformation tensor increment and the increment of the Piola-Kirchhoff's second symmetrical tensor. Nonlinearity of the material was described by means of the increment model taking into consideration the deformation and deformation rate records. The workpiece is treated as a body i

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Wijewickreme, Dharma, and Yoginder P. Vaid. "Experimental observations on the response of loose sand under simultaneous increase in stress ratio and rotation of principal stresses." Canadian Geotechnical Journal 45, no. 5 (2008): 597–610. http://dx.doi.org/10.1139/t08-001.

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The drained response of loose sand (relative density of 30%) under simultaneous increase in principal stress ratio (R = σ'1/σ'3) and the inclination of major principal stress to the vertical (ασ) is examined using data from hollow cylinder torsional shear testing. The study specifically pertains to the behaviour of loose sand subject to monotonic linear stress path loadings in the R–ασ space, within the domain of R ≤ 2, ασ < 45°, while intermediate principal stress parameter (b) and effective mean normal stress (σ'm) are held constant. The relationship between horizontal shear stress (τzt)

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Jia, Xiu Li, and Xiao Gang Yu. "The Finite Element Mesomechanics Simulation of Polycrystal Martensitic Transformation’s Plastic Strain." Advanced Materials Research 557-559 (July 2012): 2320–23. http://dx.doi.org/10.4028/www.scientific.net/amr.557-559.2320.

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The plastic strain finite element mesomechanics simulation of polycrystal martensitic transformation bring up non-linear model of influence microscopic phase transition rate and stress. Further developement and application of Marc and on the base of microscopic chemical energy distribution, evenly. As the simulation showed: 1) Early into the plasticity than that of single crystal.2) Microplastic strain distribution is not uniform, microplastic strain maximum, minimum value ratio in different incremental step fluctuate greatly. 3) Meso martensitic transformation is not uniformly distributed, an

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Wijewickreme, Dharmapriya, and Yoginder P. Vaid. "Behaviour of loose sand under simultaneous increase in stress ratio and principal stress rotation." Canadian Geotechnical Journal 30, no. 6 (1993): 953–64. http://dx.doi.org/10.1139/t93-093.

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The drained behaviour of loose sands under simultaneous increase in stress ratio and principal stress rotation is investigated. The hollow cylinder torsional device, which permits independent control of four stress parameters, namely effective mean normal stress [Formula: see text], stress ratio R, intermediate principal stress parameter b, and the inclination ασ of the major principal effective stress [Formula: see text] to the vertical, is adopted as the testing device. Drained tests carried out on saturated sand indicate that deformations under increasing R and ασ are path independent, if t

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Guo, Hongjun, Ming Ji, and Dapeng Liu. "Transition Threshold of Granite Mechanical Characteristics at High Temperature." Advances in Civil Engineering 2020 (August 17, 2020): 1–10. http://dx.doi.org/10.1155/2020/8846376.

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No unified criterion exists for the transition threshold of rock mechanical characteristics. We combine rock stress-strain curves to propose an increment ratio of axial pressure based on uniaxial compression tests on granite at high temperature. The behavior of the increment ratio of strain, elastic modulus, Poisson’s ratio, and energy with axial pressure is analyzed, and the following conclusions are drawn. (1) High temperatures aggravate rock deterioration, reduce failure strength, and enhance ductility characteristics. (2) Under loading, the compression-to-elasticity and elasticity-to-plast

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Dissertations / Theses on the topic "Strain Increment Ratio"

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Chen, Lu. "An Investigation of Wrinkling Behaviour in Woven Thermoplastic Composite Material." Master's thesis, 2018. http://hdl.handle.net/1885/140515.

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This work is designed to develop a viable universal indicator to predict the onset of wrinkling for woven thermoplastic fiber-reinforced composite materials. A range of experiments on Yoshida test are carried out to investigate the local strain behaviour at the onset of wrinkling. An approach of using the abrupt change in the slope of the evolution of the strain path to predict the onset of wrinkling is proposed in this study. This approach is the first of its kind in predicting the onset of wrinkling. Different metrics in the quantification of abru

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Book chapters on the topic "Strain Increment Ratio"

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Suzuki, K. "Importance of principal deviatoric strain increment ratios of sand." In Numerical Models in Geomechanics. Taylor & Francis, 2002. http://dx.doi.org/10.1201/9781439833797-c20.

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Conference papers on the topic "Strain Increment Ratio"

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Herman, Irwan, and Toshiyuki Meshii. "Fracture Mode Prediction Method for Pipe With Wall-Thinning by Using the History Data of Strain Ratio." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61908.

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In this study, based on the burst test results of pipes with wall-thinning, we have investigated the effect of flaw length δz and pipe size (mean radius Rm) on the burst pressure by using finite element analysis (FEA). Then, the history data of strain ratio εz/εθ along the load increment was used for the fracture mode prediction. Moreover, effect of the wall thickness at the flaw portion t1 on the fracture mode was investigated. Finally, fracture mode prediction method for pipes with wall-thinning was proposed.

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Shi, Kaikai, Yixiong Zhang, Yu Yang, et al. "Fast Fracture Evaluation of Steam Generator Channel Heads Considering High Carbon Macro-Segregation." In ASME 2020 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/pvp2020-21010.

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Abstract The Fracture evaluation is important in the structural integrity analysis of nuclear equipment which is subjected to the effects of neutron irradiation. The increment of ductile and brittle transition temperature is mainly due to the neutron irradiation, thermal ageing and strain ageing. In addition to above these factors, the high carbon macro-segregation of low-alloy steels also increases the risk of fast fracture failure as the carbon positive macro-segregation will lead to the increasing transition temperature of low-alloy steels. In this work, a relationship between the carbon co

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Goh, Ching Pang, and Mani Maran Ratnam. "Scanner-Based Digital Image Correlation Method for Mechanical Characterization of Rubber." In International Conference on Digital Transformation and Applications (ICDXA 2020). Tunku Abdul Rahman University College, 2020. http://dx.doi.org/10.56453/icdxa.2020.1009.

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The digital image correlation (DIC) method coupled with a moveable camera has been widely used for large in-plane displacement measurement in elastomeric materials. However, this method has the limitation due to the limited field-of-view (FOV) of the camera. In this paper, a novel scanner based digital image correlation (SBDIC) method which enables acquisition of a large FOV of speckle pattern image on the specimen has been developed. The entire information of the deformation was obtained and analyzed up to 350% strain. The correlation between the images at successive stages was computed using

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Miyachika, Kouitsu, and Daing Mohamad Nafiz Bin Daing Idris. "Effects of Helix Angle on Root Stresses of Thin-Rimmed Helical Gears With Various Web Arrangements." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-12852.

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Root stresses of thin-rimmed helical gears with symmetric and asymmetric web arrangement of helix angle β0 = 10° and 20°, which were meshed with solid helical gear, were measured from the beginning of engagement to the end of the engagement by using the strain gauge method. The changes of root stresses from the beginning of engagement to the end of engagement were examined. The effects of helix angle, rim thickness, web thickness and web structure on the root stresses, the maximum root stress and the meshing position, where the maximum root stress (worst loading position) occurs, were clarifie

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Hasan, Raed, Tugce Kasikci, Igor Tsukrov, and Brad L. Kinsey. "Numerical and Experimental Investigations of Key Assumptions of Analytical Failure Models in Sheet Metal Forming." In ASME 2012 International Manufacturing Science and Engineering Conference collocated with the 40th North American Manufacturing Research Conference and in participation with the International Conference on Tribology Materials and Processing. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/msec2012-7319.

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In this paper, the key assumptions in the M-K and effective stress ratio models are investigated for AISI 1018 steel specimens with a thickness of 0.78 mm using experimental and numerical data from Marciniak tests. The experimental procedure included Digital Imaging Correlation (DIC) to measure the major and minor in-plane strains. Strain components were obtained at points inside (i.e., the defect region) and adjacent (i.e., the safe regions) to the high strain concentrations for four different strain paths. In the numerical analysis, FEA simulations with Marc Mentat were performed with shell

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Liu Han-bing, Zhang Ya-juan, Zheng Quan-lu, and Ye Mao-gong. "New incremental updating algorithm for mining association rules based on AprioriTidList algorithm." In 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC). IEEE, 2011. http://dx.doi.org/10.1109/csqrwc.2011.6037282.

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Kim, Nak Hyun, Yun Jae Kim, Catrin M. Davies, Kamran M. Nikbin, and David W. Dean. "Creep Failure Simulations for 316H at 550°C." In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78133.

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In this work a method to simulate failure due to creep is proposed using finite element damage analysis. The creep damage model is based on the creep ductility exhaustion concept. Incremental damage is defined by the ratio of incremental inelastic (plastic & creep) strain and multi-axial ductility. A simple linear damage summation rule is applied. When accumulated damage becomes unity, element stresses are reduced to almost zero to simulate progressive crack growth. The model is validated through comparison with experimental data on various sized compact tension, C(T), specimens of 316H st

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Koshino, Tetsushi, Mohamed S. Aly-Hassan, and Hiroyuki Hamada. "Jute Fiber Reinforced Polymeric Composites With Flexible Interphase." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-87775.

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In this research, the flexible interphase concept was introduced to enhance the poor mechanical properties of jute fiber reinforced unsaturated polyester matrix composites. The jute cloth reinforcement was obtained from recycled coffee bags. These jute cloths after washing by water and drying were soaked in mixture of Polybutadiene Epoxydied as flexible resin and acetone for 10 seconds. Several mixtures consist of 0, 2, 3.5, 5 and 8 wt% of Polybutadiene Epoxydied and 100, 98, 96.5, 95 and 92 wt% of acetone, respectively, to form flexible interface around the jute fibers. Jute cloth reinforced

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Kim, Nak Hyun, Yun Jae Kim, Woo Gon Kim, and Hyeong Yeon Lee. "Prediction of Creep Crack Growth for Modified 9Cr-1Mo at 600°C." In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78160.

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This paper introduce theoretical creep crack growth prediction model and provides experimental validation of the approach for simulating creep crack growth using finite element analysis method, recently proposed by the authors. The FE creep damage model is based on the creep ductility exhaustion concept, and incremental damage is defined by the ratio of incremental creep strain and multi-axial creep ductility. A simple linear damage summation rule is applied. When accumulated damage becomes unity, element stresses are reduced to zero to simulate progressive crack growth. For validation, simula

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Vollrath, Bastian, and Hartwig Hübel. "Direct Analysis of Post-Shakedown Quantities With the STPZ Considering Multi-Parameter Loading." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93268.

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Abstract If a structure is subjected to cyclic loading, strain, displacements etc. may accumulate cycle by cycle due to a ratcheting mechanism. Design Codes frequently require strain limits to be satisfied at the end of the specified lifetime of the structure. Usually, this is requested to be done considering all load sets pairwise. However, this leads to the fact that ratcheting cannot be detected, if it occurs only because of multi-parameter loading. Ordinary incremental step-by-step calculations can easily exceed time and hardware resources. This is particularly true for travelling loads, w

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