... due to microstructural damage, compressibility, and chemical age hardening. The compressible Mooney–Rivlin hyperelastic strain energy density function is used along with the standard model of viscoelasticity. To model the compressibility, the dilatational strain energy is taken as the hyperbolic...

...Dongsheng Li; Said Ahzi; Mohammad Khaleel 15 10 2011 26 10 2011 26 10 2011 12 12 2011 12 12 2011 biomedical materials calcium compounds compressibility creep crystal microstructure fibre reinforced composites finite element analysis micromechanics molecular...

... development requires high accuracy systems of tension and compression test simulation. Hence, the proposed testing procedure is related to dedicated hybrid finite element method system with variable density, which was developed by the authors. The experimental work has been done using the Gleeble ® 3800...

...Lifeng Wang; Christine Ortiz; Mary C. Boyce The force-depth behavior of indentation into fibrillar-structured surfaces such as those consisting of forests of micro- or nanoscale tubes or rods is a depth-dependent behavior governed by compression, bending, and buckling of the nanotubes. Using...

... the overstrain and (2) the initial overstrain causes the nonlocal cumulative equivalent plastic strain to double in subsequent tensile-going half cycles and triple in subsequent compressive-going half cycles, as compared with cases without an initial tensile overstrain. The cyclic plastic zone...

... fibers to E-glass composite cores using a high temperature, inorganic matrix known as geopolymer. Carbon fibers were bonded to E-glass cores (i) on only the tension face, (ii) on both the tension and compression faces, or (iii) dispersed throughout the core in alternating layers to obtain a strong, yet...

... evolution of a bioimplant material made from ultra high molecular weight polyethylene during processing. Experimental results show that the anisotropy introduced during deformation increases wear resistance in desired directions. After uniaxial compression, wear resistance along the direction, perpendicular...

... of this complex phenomenon lead to interesting nonlinear effects in materials/engineering science as well as in other fields. Here, the synchrotron based energy dispersive x-ray diffraction (EDXRD) technique is used for high spatial resolution profiling of both compression and tension induced strain localization...

...Reaz A. Chaudhuri A fully nonlinear finite element analysis for prediction of localization∕delocalization and compression fracture of moderately thick imperfect transversely isotropic rings, under applied hydrostatic pressure, is presented. The combined effects of modal imperfections, transverse...

...V. Chakkarapani; K. Ravi-Chandar; K. M. Liechti Rubbery response of polyurea is examined under monotonic loading in the confined compression, composite compression, and Arcan shear configurations. For polyurea prepared by a casting process, it is shown that while the bulk response is significantly...

... on the experimental study of their fundamental mechanical properties, such as Young’s modulus, tensile and shear strength, compressibility and deformability. Selected experimental methods and techniques used for the studies will also be introduced. I conclude the review by discussing the new challenges still facing...

...A. Pantano; M. C. Boyce; D. M. Parks A recently developed procedure for modeling the deformation of single and multi-wall carbon nanotubes [13,14] is applied to nanotube buckling and post-buckling under axial compression. Critical features of the model, which is grounded in elastic shell theory...

... in the ratio of initial band to sheet thickness and material strain rate sensitivity. It was also demonstrated that initial texture plays an important role in FLD response, as has been shown in other recent studies [6,26,7]. It is shown that a texture resulting from plane strain compression to one-tenth...

...Ken Gall; Martin L. Dunn; Yiping Liu; Paul Labossiere; Huseyin Sehitoglu; Yuriy I. Chumlyakov We present experimental results on the instrumented Vickers micro-indentation and compression of solutionized Ni-rich NiTi single crystals. The tests are conducted at room temperature where...

... models since they allow for stresses and strains to vary from one single crystal to the other. We simulate uniaxial tension and compression as well as plane strain compression tests. Results in terms of stress-strain curves are shown in comparison to those of the pure Taylor and Sachs models. We also...

...G. C. Butler; S. R. Stock; R. D. McGinty; D. L. McDowell This paper assesses, via X-ray microbeam diffraction, the effects of development of dislocation substructure on the distribution of sub-grain misorientations in annealed OFHC copper deformed to large strains for compression, for shear...

... . Here it is assumed that Second, the stress for yielding the material on the shear plane using mechanical properties σ 0 mp is obtained by substituting σ x = yield strength of material in compression σ yc and τ xy = yield strength...

... AND TECHNOLOGY . Manuscript received by the Materials Division July 25, 2000. Guests Editors: Jian Cao and Z. Cedric Xia 25 July 2000 bending aerospace industry automobile industry structural engineering buckling compressibility elastoplasticity work hardening aluminium alloys austenitic...

... the tube can’t sustain any increased tensile loading. Splitting usually follows due to extreme deformations in the bursting area. Wrinkling is due to high compression load, which deteriorates the quality of the final product. The deformation theory of plasticity is utilized in this study and the material...

... received November 13, 1999. Associate Technical Editor: H. M. Zbib. 13 April 1999 13 November 1999 aluminium alloys plastic deformation yield stress plastic flow viscoplasticity compressibility finite element analysis dislocation interactions hardening There exists...