research

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)

Hi all,

I have a strange question that has puzzled me since last almost one year.

There are many SG-plasticity models in the technical literature, sometimes categorized as lower-order or higher-order models.

The problem is :

the constitutive models include the gradient of plastic parameters (e.g. plastic slip).