Through computer simulations, we show that plasticity in twinned copper nanopillars can be either reversible or irreversible depending on the applied stress state. Copper nanopillars, containing twinned crystals, are subjected to both compression and tension, and the ratio of the resolved shear ðrRÞ to the normal stress ðrN Þ, R, is adjusted through variation of the orientation of the twin boun...

Abstract High manganese steels are well used for their excellent hardening properties. In this study, we investigate the mechanical responses of high steel in a compressed condition. During compression deformation, twin crystal is first generated inside some grains with orientation advantage, and then all twinned. Selective twinning on leads to formation textural structures. When plastic deform...

With the increasing complexity of photo-realistic scenes, the question of building and placing objects in three-dimensional scenes is becoming ever more di cult. While the question of placement of rigid objects has captured the attention of researchers in the past, this work presents an intuitive and interactive scheme to properly place deformable objects with the aid of free-form deformation t...

A generalized disclination (g.disclination) theory [AF15] has been recently introduced that goes beyond treating standard translational and rotational Volterra defects in a continuously distributed defects approach; it is capable of treating the kinematics and dynamics of terminating lines of elastic strain and rotation discontinuities. In this work, a numerical method is developed to solve for...

limb bud first appears during the third week of gestation with the upper limb buds appearing a few days before the lower limb buds. complete absence of one or more limbs, called amelia, occurs prior to the eighth week of gestation. we report a case of amelia in a twin gestation.

Friction stir welding (FSW) has promising application potential in Mg alloys. However, the texture distribution in stir zone (SZ) is usually complicated for Mg alloys, which deterioriates the joint performance. In this study, the texture distribution in SZ was tailored by applying two kinds of post-weld compression deformation along normal direction (ND) or welding direction (WD) of the FSWed A...

Microstructure evolution of commercial pure titanium is investigated by interrupted in situ electron backscatter diffraction (EBSD) measurement during tensile deformation along transverse direction at room temperature. After 24 pct elongation, the split basal texture initial material weakened and rotated around 90 deg normal (ND). $${{11}\bar{2}{{2}}}$$ - $${{10}\bar{1}{{2}}}$$ double twin main...

DEFORMATION IN CHARNOCKITIC ROCKS ASSOCIATED WITH THE WOODBURY STRUCTURE. E. F Albin1, R. S. Harris2,3, D. T. King, Jr.4, S. J. Jaret5, and R. E. Jarrett3, 1Dept. of Space Sciences, Fernbank Science Center, Atlanta, GA 30307 ([email protected]), 2Dept. of Geological Sciences, Brown University, Providence, RI 02912, 3Dept. of Geosciences, Georgia State University, Atlanta, GA 30302, 4Dept. o...

in this paper, we investigate various kinds of extensions of twin-good rings. moreover, we prove that every element of an abelian neat ring r is twin-good if and only if r has no factor ring isomorphic to z2  or z3. the main result of [24] states some conditions that any right self-injective ring r is twin-good. we extend this result to any regular baer ring r by proving that every element of a...