Blog posts

A finite element formulation is presented for a direct approach to model elastoplastic deformation in slender bodies using the special Cosserat rod theory. The direct theory has additional plastic strain and hardening variables, which are functions of just the rod's arc-length, to account for plastic deformation of the rod. Furthermore, the theory assumes the existence of an effective yield function in terms of stress resultants, i.e., force and moment in the cross-section and cross-section averaged hardening parameters.

We are looking for candidates to join the Utah Waves and Architected Materials Group . We have fully funded openings for undergrads, MS and PhD. 

Applicants with track record / experience / expertise / strong passion in ANY ONE of the following technical fields are especially valued:

·        - Finite element simulations

·        - Vibrations and waves

Two Post-Doc Positions are available, Unified Mechanics Theory will be adopted for High Entropy Alloys.

Two Post-doctoral Researchers are sought to work on the H2020-SPACE project ATLAS (Advanced Design of High Entropy Alloys Based Materials for Space Propulsion)

The Candidates

EML Webinar on 28 October 2020 will be given by Prof. Xiaojing Zheng, Lanzhou University. Discussion leader: Prof. Yujie Wei, Institute of Mechanics, Chinese Academy of Sciences.

Title: Multi-scale and Trans-scale Analysis in Particle-laden Turbulence

Time: 7 am California, 10 am Boston, 3 pm London, 10 pm Beijing on 28 October 2020

https://doi.org/10.1016/j.actamat.2020.10.042

Abstract

Landau and Ginzburg formulated a theory that includes the free energy of phases, with the purpose to derive coupled PDEs describing the dynamics of phase transformations. Their model with focus on the phase transition process itself also found many other applications, not the least because many exact solutions can be obtained. During the last few decades, with focus on the bulk material rather than the phase transition, the theory has been used as a convenient tool in numerical analyses to keep track of cracks and other moving boundaries.