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Doing Topology Optimization Explicitly and Geometrically - A New Moving Morphable Components Based Framework

Submitted by Xu Guo on

    Structural topology optimization, which aims at placing available material within a prescribed design domain appropriately in order to achieve optimized structural performances, has received considerable research attention since the pioneering work of Bendsoe and Kikuchi. Many approaches have been proposed for structural topology optimization and it now has been extended to a wide range of physical disciplines such as acoustics, electromagnetics and optics.

Open PhD position in soft tissue modeling at Norwegian University of Science and Technology (NTNU)

Submitted by Bjorn Skallerud on

The project addresses tissue modeling for the pharynx region and is a part of a larger project addressing the obstructive sleep apnea syndrome (mechanical, fsi, medical angles). See www.jobbnorge.no/ledige-stillinger/stilling/101325/phd-positions-in-sof… for further info. Deadline is 15 May.Expected start-up is summer 2014.

From dislocation motion to an additive velocity gradient decomposition, and some simple models of dislocation dynamics

Submitted by Amit Acharya on

Amit Acharya         Xiaohan Zhang

(Chinese Annals of Mathematics, 36(B), 2015, 645-658.  Proceedings of the International Conference on Nonlinear and Multiscale Partial Di fferential Equations: Theory, Numerics and Applications held at Fudan University, Shanghai, September 16-20, 2013, in honor of Luc Tartar.)

Non-Metricity and the Nonlinear Mechanics of Distributed Point Defects

Submitted by arash_yavari on

We discuss the relevance of non-metricity in a metric-affine manifold (a manifold equipped with a connection and a metric) and the nonlinear mechanics of distributed point defects. We describe a geometric framework in which one can calculate analytically the residual stress field of nonlinear elastic solids with distributed point defects. In particular, we use Cartan's machinery of moving frames and construct the material manifold of a finite ball with a spherically-symmetric distribution of point defects.