46 citations · 74 across the 5 of their papers we have counts for
5 papers
Plasticity without phenomenology: a first step
Sabyasachi Chatterjee, Giacomo Po, Xiaohan Zhang +2
A novel, concurrent multiscale approach to meso/macroscale plasticity is demonstrated. It utilizes a carefully designed coupling of a partial differential equation (pde) based theo…
Finite Element Approximation of Finite Deformation Dislocation Mechanics
Rajat Arora, Xiaohan Zhang, Amit Acharya
We develop and demonstrate the first general computational tool for finite deformation static and dynamic dislocation mechanics. A finite element formulation of finite deformation…
Critical Strain for Surface Nucleation of Dislocations in Silicon
Xiaohan Zhang, Wei Cai
A long-standing discrepancy exists between experiments and atomistic models concerning the critical strain needed for surface nucleation of dislocations in silicon-germanium system…
Spherical harmonics method for computing the image stress due to a spherical void
Yifan Wang, Xiaohan Zhang, Wei Cai
We develop an efficient numerical method for calculating the image stress field induced by spherical voids in materials. The method is applied to dislocation-void interactions in d…
A non-traditional view on the modeling of nematic disclination dynamics
Chiqun Zhang, Xiaohan Zhang, Amit Acharya +2
Nonsingular disclination dynamics in a uniaxial nematic liquid crystal is modeled within a mathematical framework where the kinematics is a direct extension of the classical way of…