research

Understanding the electrothermal-mechanical behavior of electronic inter-

connects is of practical importance in improving the structural reliability of

electronic devices. In this work, we use the finite-element method to analyze

the Joule-heating-induced thermomechanical deformation of a metallic sphere

that is sandwiched between two rigid plates. The deformation behavior of the

sphere is elastic–perfectly plastic with Young’s modulus and yield stress

decreasing with temperature. The mechanical stresses created by Joule

Natural rubber (NR) is known to crystallize under strain (SIC) so that NR samples subjected to loading-unloading cycles exhibit hysteresis. A brief review of the numerous experiments conducted on this material is given. Detailed information on the microstructure is therefore available, particularly simultaneous measurements of stress versus elongation and

Post-Doc Position:

Multiscale Simulations of Domain Structures in Thermoelectric Materials

Dear all,

In micomechanics, homogenization of heterogeneous
materials based on FEM is traditional. Homogenization based on FFT technique has been recently found (in many literatures) to have much more advantages
in term of accuracy, computational cost and resource consumption.

I am wondering why FEMs are still
widely used in education, research, and industries of
generally
computational
mechanics ?

Please could anyone help me to clarify
my question?

Thanks

Amit Acharya, Huang Tang, Sunil Saigal, John L. Bassani, On boundary conditions and plastic strain-gradient discontinuity in lower-order gradient plasticity, Journal of the Mechanics and Physics of Solids, 52 (2004) 1793 – 1826

Acharya, A., Jump conditions for GND evolution as a constraint on slip transmission at grain boundaries, Philosophical Magazine, 87(8-9), 1349-1359, 2007 (see attachment)