finite deformation

New themed collection in Materials Advances on “Multimodal Remote Actuation and Sensing in Polymers for Advanced Applications” now open for submissions

https://blogs.rsc.org/jm/2023/07/26/themed-collection-multimodal-remote-...

(To appear in Journal of Elasticity).

http://orbilu.uni.lu/handle/10993/16438 http://orbilu.uni.lu/bitstream/10993/16438/1/2014_NURBSbasedExplicit_Mem...

These notes are part of a course on advanced elasticity.  The notes recall several phenomena where both elasticity and surface energy are significant, including

• Griffith crack
• Adhesion of flexible structures
• Wafer bonding
• Contraction of a soft elastic sheet 

The notes also contain a formulation of combined surface energy and elasticity of finite deformation.  

Dear all,

We are pleased to announce the forthcoming Summer
School on “Hardening and Damage of Materials under Finite Deformations:
Constitutive Modeling and Numerical Implementation”, which will take place in
Dortmund, Germany from September 3rd to 7th, 2012 and is organized by Prof.
Dr.-Ing. A. Erman Tekkaya of TU Dortmund and Dr. Tudor Balan of LEM3,
ENSAM Metz.

In continuation of our work on yield surfaces

Part- 1 (node/9016)

Part- 2 (node/9073) and

Part- 3 (node/9103) 

It is essential to know the amount of springback for a given forming process, so that the process or the design of the tool can be modified to obtain the desired product shape. This requires a comprehensive understanding of loading and unloading processes, and determination of elastic constants with finite plastic deformation which, in turn, require precise determination of subsequent yield surfaces.

Classical plasticity models evolve state variables in a spatially independent manner through (local) ordinary differen- 

tial equations, such as in the update of the rotation field in crystal plasticity. A continuity condition is derived for the 

lattice rotation field from a conservation law for Burgers vector content—a consequence of an averaged field theory 

of dislocation mechanics. This results in a nonlocal evolution equation for the lattice rotation field. The continuity