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Littérature scientifique sur le sujet « Double Cantilever Beam (DCB) test »

Auteur : Grafiati
Publié le 11 janvier 2025

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Articles de revues sur le sujet "Double Cantilever Beam (DCB) test"

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Sponseller, David L., and Thomas E. Sponseller. "The Double Cantilever Beam (DCB) Test at Forty." BHM Berg- und Hüttenmännische Monatshefte 161, no. 1 (2016): 19–26. http://dx.doi.org/10.1007/s00501-016-0449-7.

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Alfred Franklin, V., T. Christopher, and B. Nageswara Rao. "Influence of Root Rotation on Delamination Fracture Toughness of Composites." International Journal of Aerospace Engineering 2014 (2014): 1–12. http://dx.doi.org/10.1155/2014/829698.

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Large deviations have been observed while analysing composite double cantilever beam (DCB) specimens assuming each cracked half as a simple cantilever beam. This paper examines the effect of rotational spring stiffness(K)on the critical fracture energy(GIC)considering nonzero slope at the crack-tip of the DCB specimen by modelling each cracked half as the spring-hinged cantilever beam. The critical load estimates of DCB specimens fromGICare found to be in good agreement with in-house and existing test results of different composite material systems.
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Gourlie, A. D., G. N. Podolski, and J. R. Fleet. "A Detailed Statistical Examination of the Double Cantilever Beam (DCB) Test." CORROSION 47, no. 9 (1991): 728–35. http://dx.doi.org/10.5006/1.3585859.

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LOO, SHANE ZHI YUAN, PUAY CHENG LEE, ZAN XUAN LIM, et al. "INTERFACE FRACTURE TOUGHNESS ASSESSMENT OF SOLDER JOINTS USING DOUBLE CANTILEVER BEAM TEST." International Journal of Modern Physics B 24, no. 01n02 (2010): 164–74. http://dx.doi.org/10.1142/s0217979210064095.

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In the current work, a test scheme to evaluate solder joint interface fracture toughness using double cantilever beam (DCB) test has been successfully demonstrated. The obtained results, in terms of critical energy release rate, predict the joint failure based on the principle of fracture mechanics. The results can be used as a materials property in the reliability design of various types of solder-ball joined packages. DCB specimens made of 99.9 wt% copper were selected in the current work. Eutectic Sn -37 Pb and lead-free Sn -3.5 Ag -0.5 Cu solders were used to join two pieces of the copper
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de Morais, A. B. "A new fibre bridging based analysis of the Double Cantilever Beam (DCB) test." Composites Part A: Applied Science and Manufacturing 42, no. 10 (2011): 1361–68. http://dx.doi.org/10.1016/j.compositesa.2011.05.019.

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Hlača, Ivan, Marin Grbac, and Leo Škec. "Determining Fracture Resistance of Structural Adhesives in Mode-I Debonding Using Double Cantilever Beam Test." Zbornik radova 22, no. 1 (2019): 59–74. http://dx.doi.org/10.32762/zr.22.1.4.

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Double cantilever beam (DCB) test is the most commonly used test for determining the fracture resistance of structural adhesive joints in mode-I debonding. Test specimens are composed of two equal plates that are glued together, and then exposed to the opening load causing crack propagation along the bonded surface. During the experiment, loadline displacement, applied force and crack length are measured continuously. Using these data, the fracture toughness of the adhesive can be computed by the procedure given in the relevant ISO standard (BS ISO 25217:2009). The calculations are based on si
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Tawk, I., J. F. Ferrero, J. J. Barrau, E. Abdullah, and M. Sudre. "Amultilayered Solid Element used to Model Composite Delamination." Advanced Composites Letters 19, no. 1 (2010): 096369351001900. http://dx.doi.org/10.1177/096369351001900103.

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This paper focuses on the latest development of a solid hexahedron element for composite delamination analysis. The 8-node solid is derived from a 20-node hexahedron. It is transformed into two physical independent 4-node shell elements according to the propagation of delamination process within the element. This transformation is driven by a transfer and damage laws that are defined by calibrating the element with a FE modeling for a double cantilever beam (DCB) test. According to the position of the crack in the element, one parameter defines the degradation of the transverse properties at t
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Shen, Yurong, Dongsheng Huang, Ying Hei Chui, and Chunping Dai. "Fracture of Parallel Strand Bamboo Composite under Mode I Loading: DCB Test Investigation." Advances in Materials Science and Engineering 2019 (September 23, 2019): 1–10. http://dx.doi.org/10.1155/2019/7657234.

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This paper describes the experimental studies on Mode I fracture of parallel strand bamboo (PSB) by the double cantilever beam (DCB) test. R-curves based on the elementary beam theory and specimen compliance are proposed in order to overcome the difficulties to monitor the crack propagation during experiments. The results demonstrate that the energy release rate (ERR) is influenced by the specimen geometry, i.e., the specimen width and initial crack length. The ERR at the plateau level is similar for the range of the analyzed widths (B = 20, 40, and 60 mm), while it decreases with width increa
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Gliszczynski, A., S. Samborski, N. Wiacek, and J. Rzeczkowski. "Mode I Interlaminar Fracture of Glass/Epoxy Unidirectional Laminates. Part II: Numerical Analysis." Materials 12, no. 10 (2019): 1604. http://dx.doi.org/10.3390/ma12101604.

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The paper deals with numerical analysis of double cantilever beam (DCB) predefined to Mode I Interlaminar Fracture Tests of GRFP unidirectional laminates. The numerical analyses were performed in the ANSYS® program based on the finite element. In geometrically nonlinear analysis, two algorithms, responsible for initiation and propagation of delamination front, were applied: Virtual Crack Closure Technique (VCCT) and Cohesive zone method (CZM). Due to the unidirectional arrangement of layers of the laminate, the problem of DCB test was solved with the use of one- and three-dimensional models wi
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Pavelko, Vitalijs. "Application of the Nonlinear Model of a Beam for Investigation of Interlaminar Fracture Toughness of Layered Composite." Key Engineering Materials 665 (September 2015): 273–76. http://dx.doi.org/10.4028/www.scientific.net/kem.665.273.

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Earlier presented the geometrically nonlinear model of a flexible beam (cylindrical bending of a plate) was used for analysis of post-buckling behavior of the layered composite with delamination at compression. In this paper the model is used for more details nonlinear analysis of double cantilever beam (DCB) that used in standard test for determination of the interlaminar fracture toughness composites with delamination-type damage. The main advantage of the model is a precise description of the curved axis of the beam (plate) without linearization or other higher order approximations. The exa
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Thèses sur le sujet "Double Cantilever Beam (DCB) test"

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Majeed, Moiz, and Teja Geesala Rahitya Venkata. "Characterization of thin laminate interface by using Double Cantilever Beam and End Notched Flexure tests." Thesis, Blekinge Tekniska Högskola, Institutionen för maskinteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-20852.

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This thesis is intended to identify the mode I and mode II fracture toughness to characterize the thin laminate interface by using the Double Cantilever Beam test (DCB) and End Notched Flexure test (ENF). This study’s thin laminate was Polyethylene Terephthalate and Low-Density Polyethylene (PET-LDPE), which is mostly used by packaging industries in the manufacturing of packages to store liquid food. As PET-LDPE film is very flexible and difficult to handle, DCB and ENF tests cannot be performed directly so, sheet metal (Aluminium) was used as carrier material. PET-LDPE film is placed between
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Peignon, Axel. "Contribution au développement de méthodes de caractérisation et de modélisation de LVL de peuplier en vue de leur usage dans la mobilité." Electronic Thesis or Diss., Université de Toulouse (2023-....), 2024. http://www.theses.fr/2024TLSEI017.

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Cette thèse s’inscrit dans le projet « BOOST » (acronyme de « le BOis pOur les STructures des véhicules ») financé par l’Agence Nationale de la Recherche (ANR). Il s’agit d’un Projet de Recherche Collaboratif entre l’ICA (Institut Clément Ader) à Toulouse et le LaBoMaP (LaBoratoire des Matériaux et Procédés) à Cluny.Le bois est une ressource locale, à très faible empreinte carbone et renouvelable. Largement utilisé dans l’aéronautique, mais aussi dans l’automobile en tant que structure travaillante dans le passé, son réemploi devient aujourd’hui un enjeu de la bioéconomie (Mair-Bauernfeind et
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Verdade, João Filipe Silva. "Comportamento à fadiga em modo I usando o ensaio Double Cantilever Beam modificado." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/17446.

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Mestrado em Engenharia Mecânica<br>A delaminagem é um dos modos de rutura mais frequentes dos laminados compósitos, e que é geralmente tratado no âmbito da Mecânica da Fratura. Tem havido recentemente interesse crescente na caraterização do comportamento à delaminagem sob fadiga. O primeiro objetivo deste trabalho foi adaptar a máquina de baixo custo desenvolvida no Departamento de Engenharia Mecânica da Universidade de Aveiro à realização de ensaios de delaminagem sob fadiga em modo I. O segundo objetivo foi realizar alguns ensaios de laminado carbono/epóxido iniciando assim um estud
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Liswell, Brian P. "Exploration of Wood DCB Specimens Using Southern Yellow Pine for Monotonic and Cyclic Loading." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/9955.

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The primary direction of this thesis was towards exploring qualitative and quantitative characteristics necessary for refining and understanding the flat wood double cantilever beam (DCB) as a valid means for testing Mode I fracture energy in wood adhesive bonds. Southern yellow pine (SYP) adherends were used with epoxy and phenol formaldehyde (PF) impregnated films, providing two systems with different characteristics for investigation. An adhesive penetration analysis was performed for both the epoxy and PF bonds. The PF penetration into the SYP was shown to be relatively shallow. The epoxy
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Budhe, Sandip Rudha. "Effect of pre-bond moisture on the static and fatigue behaviour of bonded joints between CFRP laminates for structural repairs." Doctoral thesis, Universitat de Girona, 2014. http://hdl.handle.net/10803/283567.

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In recent years, the use of composite materials in the aeronautic, automotive, marine construction, etc. has increased significantly. Hence, there is an increasing need for repair technologies on primary structural components, as replacing a damaged component by a new one is not cost effective in many cases. The composite structures experience damage in service that comes from accidental impacts, mechanical stresses, environmental factors (moisture and temperature), etc. Thus, maintenance and repair is the concern of the end users as well as of the manufacturers. Suitable material systems and
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Cámara, Vela Juan Antonio, and Molina Juan Manuel Sánchez. "Design of a Double Cantilever Beam Test Specimen and Fixture for Kink Band Formation in Unidirectional Fibre Reinforced Composites." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-11218.

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Composite materials are widely used in demanding applications in aerospace and other industries. In order to understand the complex behaviour of the composite materials and their components, standardised test methods are used. One example is the double cantilever beam (DCB) test in which the test specimen is loaded in an opening, i.e., tensile mode. Failures in composite materials loaded compression are different from those in tension, for example, kink band or buckling-like failures can occur. In this project, several DCBs are designed and a new fixture which allows for compression testing of
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Gozluklu, Burak. "Delamination Analysis By Using Cohesive Interface Elements In Laminated Composites." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12611005/index.pdf.

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Finite element analysis using Cohesive Zone Method (CZM) is a commonly used method to investigate delamination in laminated composites. In this study, two plane strain, zero-thickness six-node quadratic (6-NQ) and four-node linear (4-NL) interface elements are developed to implement CZM. Two main approaches for CZM formulation are categorized as Unified Mode Approach (UMA) and Separated Mode Approach (SMA), and implemented into 6-NQ interface elements to model a double cantilever beam (DCB) test of a unidirectional laminated composite. The results of the approaches are nearly identical. Howeve
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Ranade, Shantanu Rajendra. "Performance Evaluation and Durability Studies of Adhesive Bonds." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/64990.

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In this dissertation, four test approaches were developed to characterize the adhesion performance and durability of adhesive bonds for specific applications in areas spanning from structural adhesive joints to popular confectionaries such as chewing gum. In the first chapter, a double cantilever beam (DCB) specimen geometry is proposed for combinatorial fracture studies of structural adhesive bonds. This specimen geometry enabled the characterization of fracture energy vs. bondline thickness trends through fewer tests than those required during a conventional "one at a time" characterization
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Guan, Youliang. "Crack path selection and shear toughening effects due to mixed mode loading and varied surface properties in beam-like adhesively bonded joints." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/24905.

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Structural adhesives are widely used with great success, and yet occasional failures can occur, often resulting from improper bonding procedures or joint design, overload or other detrimental service situations, or in response to a variety of environmental challenges. In these situations, cracks can start within the adhesive layer or debonds can initiate near an interface. The paths taken by propagating cracks can affect the resistance to failure and the subsequent service lives of the bonded structures. The behavior of propagating cracks in adhesive joints remains of interest, including wh
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Xu, Shuangyan. "Evaluating Thermal and Mechanical Properties of Electrically Conductive Adhesives for Electronic Applications." Diss., Virginia Tech, 2002. http://hdl.handle.net/10919/27112.

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The objective of this study was to evaluate and gain a better understanding of the short-term impact performance and the long-term durability of electrically conductive adhesives for electronic interconnection applications. Three model conductive adhesives, designated as ECA1, ECA2 and ECA3, supplied by Emerson & Cuming, were investigated, in conjunction with printed circuit board (PCB) substrates with metallizations of Au/Ni/Cu and Cu, manufactured by Triad Circuit Inc. Effects of environmental aging on the durability of conductive adhesives and their joints were evaluated. All the samples
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Livres sur le sujet "Double Cantilever Beam (DCB) test"

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Pavlovskis, Pēteris. Analysis of Two Actual Problems of Interlaminar Fracture Assessment of Layered Composite. RTU Press, 2022. http://dx.doi.org/10.7250/9789934228148.

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Two types of specimens were studied based on applying the nonlinear theory of flexible plates to obtain the interlaminar fracture toughness of layered composites. For a specimen of the thin sub-layer type, a theoretical solution was obtained in relation to the determination of the interlaminar fracture toughness for a mixed II/I mode. The fundamental possibility of using this solution in test practice was confirmed. The application of the nonlinear theory of flexible plates to the well-known standard specimen of the double-cantilever beam (DCB) was studied in more detail. A theoretical solutio
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Chapitres de livres sur le sujet "Double Cantilever Beam (DCB) test"

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Carpinteri, A., B. Chiaia, and P. Cornetti. "Double-Cantilever Beam Test in Brittle Materials." In Problems of Fracture Mechanics and Fatigue. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-2774-7_40.

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Liao, C. H., B. Watson, M. J. Worswick, and D. S. Cronin. "Mode I Rigid Double Cantilever Beam Test and Analysis Applied to Structural Adhesives." In Dynamic Behavior of Materials, Volume 1. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-62956-8_13.

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Sun, Chen, Minghua Dai, Liang Ying, Kai Du, Zhigang Chen, and Ping Hu. "Experimental and Numerical Simulation on Formability and Failure Behavior of Thermoplastic Carbon Fiber/AL Composite Laminates." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-58006-2_30.

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AbstractCarbon fiber reinforced thermoplastic/aluminum alloy (CFRTP/AL) composite laminates have the advantages of low density, high specific strength, and good fatigue resistance, which is a new type of engineering composite material to realize lightweight vehicle body. Heterogeneous interface delamination failure occurs in the forming process of the fiber metal laminates (FMLs). It is necessary to establish an effective finite element simulation strategy to accurately predict the delamination failure behavior of FMLs. In this work, thermoplastic PA6 continuous carbon fiber/AL FMLs were taken as the research object, and the double cantilever beam (DCB) and the end-notched flexure (ENF) experiments were carried out to determine the basic mechanical parameters between the interlayer interfaces of CFRTP/AL. Furthermore, a numerical simulation model based on ABAQUS software was developed to describe the progressive damage failure behavior of the CRFTP/AL in the forming process by using the equivalent modeling strategy of discontinuous micro-shear, which realized the effective prediction of ply directional damage failure of FMLs on the basis of the S-beam model. The results show that the established damage constitutive model and numerical method coupled with cohesive zone model (CZM) can effectively predict the ply directional damage failure behavior of CFRTP/AL composites during the large deformation forming.
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Mansour, Rabih, Manigandan Kannan, Gregory N. Morscher, Frank Abdi, Cody Godines, and Saber DorMohammadi. "The Wedge-Loaded Double Cantilever Beam Test: A Friction Based Method for Measuring Interlaminar Fracutre Properties in Ceramic Matrix Composites." In Ceramic Transactions Series. John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781119407270.ch27.

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Meltem Toygar, Evren, and Ahmet Gulakman. "Failure Modes in Fiber Reinforced Composites and Fracture Toughness Testing of FRP." In Advances in Fatigue and Fracture Testing and Modelling. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.99268.

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In this paper, interlaminar fracture behavior of woven-fabric-reinforced glass/epoxy composites has been investigated experimentally and numerically. The mechanical properties of this composite were studied and Mode I (Tensile Opening) DCB (Double Cantilever Beam) tests were performed on Fiber Reinforced Composite (FRP) specimens to determine the delaminating resistance of composite laminates used for structural applications. Techniques for measuring the interlaminar fracture toughness, KIC data of woven-fabric-reinforced glass/epoxy composite materials, are highlighted under the consideration of ASTM Standard D5528–01 and test methods ISO 15024, DIN EN ISO 75-1 and DIN EN ISO 75-3. The obtained test results were apparently consistent with the assumptions of the CCM (Compliance Calibration Method) that was used to obtain the interlaminar critical SERR (strain energy release rate), GIC. Finite element analysis was conducted to validate the closed form solution. The use of obtained mechanical properties data in finite element analyses utilizing fracture mechanics are examined. Results show a good agreement between experimental and numerical solutions.
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Gaona-Tiburcio, Citlalli, Alejandro Lira-Martínez, Marianggy Gomez-Avila, et al. "Delamination and Tensile Effect of Fine z-Binder Reinforced on Fiberglass/Polyester Composite for Aerospace Applications." In Next Generation Fiber-Reinforced Composites - New Insights [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.106927.

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Delamination propagation in laminated composite materials is a common issue that always concerns us when we consider composites for structural purpose. Many possible solutions have been studied; the most famous is the three-dimensional (3D) woven composites materials, which have promising interlaminar fracture resistance but at the cost of increasing density, which for aerospace industry is very important. In this chapter, mode 1 double cantilever beam (DCB) interlaminar fracture toughness tests according to the American Society for Testing and Materials (ASTM) D5528 standard were performed on composite specimens made of E-Glass Saertex 830 g/m2 Biaxial (+/−45°) with Sypol 8086 CCP polyester resin with orthogonal z-axis oriented yarn woven of 0.22 mm diameter nylon monofilament. Four specimens were made with a longitudinal distance between the warp binders of 0.5, 1, 1.5, and 2 cm, respectively. A tensile test according to the ASTM D3039 standard was performed to study how z-binder may affect tensile resistance. The results show a considerable increase in interlaminar fracture toughness, several stress concentrators have been created because of the new yarn and premature failure in the matrix.
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"Fracture properties of concrete as determined by means of wedge splitting tests and tapered double cantilever beam tests." In Fracture Mechanics Test Methods For Concrete. CRC Press, 2004. http://dx.doi.org/10.1201/9781482267532-9.

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Actes de conférences sur le sujet "Double Cantilever Beam (DCB) test"

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XU, WU, and JIANCAN DING. "CLOSED-FORM J-INTEGRAL AND ITS APPLICATIONS FOR MEASUREMENT OF MODE I INTERLAMINAR FRACTURE TOUGHNESS OF COMPOSITES." In Thirty-sixth Technical Conference. Destech Publications, Inc., 2021. http://dx.doi.org/10.12783/asc36/35925.

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Due to the interlaminar properties of composites are low, delamination is one of the major failure modes. It threatens the safety of composite structure subjected to out-of-plane static and especially impact loadings. High interlaminar fracture toughness is demanded in the society where composite structures are widely used. However, for tough material, large deformation may occur in the determination of the interlaminar fracture toughness when using the double cantilever beam (DCB) test. Therefore, accurate determination of the fracture toughness of tough material and dynamic loading is very c
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WEEKS, SHAWN, and MICHAEL CZABAJ. "STATIC AND FATIGUE CHARACTERIZATION OF MODE I FRACTURE IN ADHESIVELY BONDED COMPOSITES BASED ON THE J-INTEGRAL APPROACH." In Proceedings for the American Society for Composites-Thirty Eighth Technical Conference. Destech Publications, Inc., 2023. http://dx.doi.org/10.12783/asc38/36708.

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In this work, efforts are made to further develop tests for characterization of mode I quasi-static and fatigue fracture of adhesively bonded composites based on the J-integral approach using the double cantilever beam (DCB) test. This work will address the few remaining challenges that must be resolved before standardization of these test methods. Specifically presented are the attempts to: 1) establish a robust procedure for measuring JI using specimen arm rotation and the applied load, 2) determine specimen geometry that would enable accurate characterization of the traction separation law
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Kapania, Rakesh K., Dhaval P. Makhecha, Eric R. Johnson, Josh Simon, and David A. Dillard. "Modeling Stable and Unstable Crack Growth Observed in Quasi-Static Adhesively Bonded Beam Tests." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-59765.

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An experimental and computational study of an adhesively bonded, double cantilevered beam (DCB) under quasi-static loading is presented. The polymeric adhesives are either an acrylic or an epoxy, and the adherends are 6061 aluminum alloy. DCB tests bonded with the acrylic exhibited stable crack growth, while the DCB tests bonded with the epoxy exhibited unstable crack growth. The responses of the DCB test speciments were modeled in the ABAQUS/Standard® software package. Interface finite elements were located between bulk elements to model crack initiation and crack growth in the adhesive. Thes
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Pal, Joydeep, Chandan Mukhopadhyay, and Ajit K. Roy. "Cracking of Alloy C-276 in an Acidic Environment." In ASME 2007 Pressure Vessels and Piping Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/pvp2007-26429.

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Austenitic Alloy C-276 has been identified as a structural material for application in hydrogen generation using nuclear heat. Fracture-mechanics-based pre-cracked and wedge-loaded double-cantilever-beam (DCB) specimens have been tested in an acidic solution at ambient temperature for 15 and 30 days. Three levels of initial stress intensity factors (K1) were used to determine crack propagation following exposure of the DCB specimens to the test environment. The results indicate that the magnitude of K1 was substantially reduced after testing, the extent of reduction being more pronounced with
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Mou, Shancong, Jialei Chen, Chuck Zhang, and Ben Wang. "A Data Fusion Framework for Fracture Toughness Modeling Using Multiple Sources of Data." In 2020 International Symposium on Flexible Automation. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/isfa2020-9649.

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Abstract The adhesive bonding technology of composite material is widely used in the industry, and the double-cantilever beam (DCB) test is a standard test for measuring the bonding quality. However, adhesive bonding methods may compromise the bonding strength, leading to weak bonds or so-called kissing bonds. In this research, we present a data-driven method to model the relationship between the process parameters and the mode-I fracture toughness. Due to the limited size of the DCB training data, we propose a novel data fusion framework, also incorporating the historical single-lap joint (SL
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Makhecha, Dhaval P., Rakesh K. Kapania, Eric R. Johnson, David A. Dillard, George C. Jacob, and J. Michael Starbuck. "Rate-Dependent Cohesive Zone Modeling of Unstable Crack Growth in an Epoxy Adhesive." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-81317.

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This paper presents the development and numerical implementation of a rate dependent fracture model of an epoxy adhesive. Previous mode I fracture tests conducted under quasistatic, displacement controlled loading of an aluminum double cantilever beam (DCB) bonded with the epoxy exhibited unstable crack growth in the adhesive. Results from mode I fracture tests of compact tension specimens made from bulk adhesive at increasing cross head opening speeds are reported in this paper. The compact tension tests results showed a decreasing critical strain energy release rate with increasing cross hea
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Jadhav, Vishwas S., and Ajit D. Kelkar. "Fabrication, Processing and Characterization of Carbon Fibre Reinforced Laminated Composite Embedded With Graphene Lattice Sheets." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-71191.

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Abstract This manuscript introduces the challenges in the fabrication of graphene sheet reinforced non-crimp fabric (NCF) composite laminates and their influence on the interlaminar strength of the composite laminates. In the current work, the laminates were fabricated using non-crimp carbon fabric prepreg along with 50,120 and 240 μm thick graphene sheets at the mid-plane. Double Cantilever Beam (DCB) tests are done as per ASTM 5528 using INSTRON electromechanical testing system. Modified Beam Theory method used to compute Mode I fracture toughness, using load, displacement, specimen dimensio
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Vishe, Nilesh J., Sankha S. Aditya, Sameer B. Mulani, and Samit Roy. "Fatigue Delamination Damage Sensing and Self-Healing in Thermoset Composites Using Thermoplastic Healants." In ASME 2024 Aerospace Structures, Structural Dynamics, and Materials Conference. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/ssdm2024-121605.

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Abstract In this study, fatigue testing under mode-I loading and damage (delamination) detection tests were carried out on double cantilever beam (DCB) specimens, and subsequent healing of the delamination was investigated. Due to the susceptibility of laminated composites to delamination, fatigue delamination is one of the critical damage modes in laminated composites and can lead to catastrophic failure if it is allowed to proceed unchecked. Hence, it is necessary to investigate and quantify the delamination crack growth behavior due to fatigue loading and to accurately predict the size of t
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Skec, Leo, and Giulio Alfano. "Characterisation of rate-dependent fracture in adhesive joints." In UK Association for Computational Mechanics Conference 2024. Durham University, 2024. http://dx.doi.org/10.62512/conf.ukacm2024.044.

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For adhesive joints, several authors questioned the applicability of LEFM when the combination between the ductility of the adhesive, the stiffness of the adherents and the fracture mode leads to a relatively large process zone during crack propagation. For such cases, nonlinear fracture mechanics (NLFM) and the use of the critical value, 𝐽𝑐, of the J integral have been recommended. This was until it was recently showed, at least for the case of mode-I crack propagation along a thin interface, that the difference between 𝐺𝑐 and 𝐽𝑐is found to be equal to the partial derivative with respect to t
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Yekani Fard, Masoud, John M. Woodward, Siddhant Datta, Brian Raji, and Aditi Chattopadhyay. "Characterization of Interlaminar Fracture Properties of Advanced Polymer Matrix Composites Interleaved With Buckypaper." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66943.

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Recently a novel high-speed/high-yield surfactant-free manufacturing method has been developed for manufacturing of large size buckypaper. In spite of this development, there is no data on the effects of microstructural characteristics on the structural properties of surfactant-free buckypaper based nanocomposites. This investigation examines the effects of the proposed manufacturing procedure on the resultant interlaminar fracture properties of buckypaper based nanocomposites. Buckypaper samples were fabricated using the novel surfactant-free technique. Buckypaper based nanocomposite samples
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Rapports d'organisations sur le sujet "Double Cantilever Beam (DCB) test"

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Stavig, Mark E., Rex Jaramillo, Elizabeth Larkin, Jason Wade Dugger, and Reedy, Earl David ,. Asymmetric Double Cantilever Beam Test to Measure the Toughness of an Alumina/Epoxy Interface. Office of Scientific and Technical Information (OSTI), 2019. http://dx.doi.org/10.2172/1595916.

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