| Dr. Zhibo Tang
E-mail: tangz@uci.edu
Education
Ph.D., Mechanics of Solids and Structures, Brown University, 2002
Research Interests
Meshless Local Petrov-Galerkin (MLPG) method for Non-local
continuum mechanics
The theory of non-local continuum mechanics, such as strain gradient
theory, inevitably incurs high order derivatives of the displacements
in the governing equations and the corresponding complicated boundary
conditions. Because satisfying the requirement of high order continuity
in FEM incur dramatically large number of DOF and non-trivial shape
functions, mesh-free method would play a key role in development
of numerical approaches of non-local assumptions involved in some
recently emerging areas such as Nano- Technology.
Mechanics of Fracture in Brittle Solids and Composites
Ceramic materials have many appealing features, including a high
specific stiffness, high yield stress, and high melting point. Their
limitation is poor fracture toughness. The goal is to develop computational
methods to model crack propagation in reinforced brittle solids,
and apply these techniques to investigate ways of improving the
toughness of ceramic materials.
Computational Mechanics for Microelectronics
Applications
Control of microstructure, and control of stress, are two issues
of fundamental importance to the microelectronics industry. Developing
computational techniques to model microstructure evolution in microelectronic
circuits, driven by stress, temperature, and electric currents is
of particular interest. These techniques may be applied to investigate
a number of phenomena, including electromigration and stress voiding
in aluminum and copper interconnects, and the growth of self-organized
arrays of quantum dots in strained heteroepitaxial thin films.
Recent Publications
Z.Tang, S.Shen, S.Atluri, 'Meshless Local Petrov-Galerkin Method
for Fourth-order Elliptic Problems in Continuum Mechanics with Application
to Materials with Strain Gradient Effects', CMES (in press), 2002
Z.Tang, S.Shen, S.Atluri, 'Numerical simulations of the growth
and deflection of a stress corrosion crack on the interface between
two brittle solids’, CMES (in press), 2002
Z.Tang, A.F. Bower, T-J Chuang, 'Numerical simulations of subcritical
Crack growth by stress corrosion in an elastic solid’, Multi-scale
Deformation and Fracture in Materials and Structures, ed. T.J. Chuang
and J. Rudnicki, Kluwer, (2000) p331-48
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