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A paper on: Mathematical modeling of the overall time-dependent behavior of non-ageing viscoelastic reinforced composites.

Submitted by El Kouri mohamed on
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Materials Forum
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Viscoelastic composites
non ageing behavior
Volterra product
Mori-Tanaka
micromechanics
time dependent
convolution integrals

abstract: 
  New mathematical and numerical formulations are developed for effective time-dependent non ageing viscoelastic behavior of linear viscoelastic composites. The modeling is based on the dynamic Green's functions, integral equations, and Volterra product. The time concentration tensor is derived through numerical solution of the integral equation and the Mori-Tanaka micromechanical

Mesoscale Constitutive Modeling of Non-Crystallizing Filled Elastomer

Submitted by Ajay B Harish on
research
elastomeric materials
mullins effect
International Journal

We have just published a new paper, 1st in the series, that presents a computational model to understand the microstructural changes in the filled elastomers as a consequence of mechanical forces. A heterogeneous (or multiphase) constitutive model at the mesoscale explicitly considering filler particle aggregates, elastomeric matrix and their mechanical interaction through an approximate interface layer is presented. An innovative lego-set method is discussed for generation of random microstructures that can be used for simple stochastic analysis.

Extreme Multiscale Modeling - 53.8 Billion finite elements

Submitted by karelmatous on
research
computational homogenization
multiscale modeling and simulation
High Performance Computing

In our recent Extreme Mechanics Letter, we present a simulation consisting of 53.8 Billion finite elements with 28.1 Billion nonlinear equations that is solved on 393,216 computing cores (786,432 threads). The excellent parallel performance of the computational homogenization solver is demonstrated by a strong scaling test from 4,096 to 262,144 cores.

The injection of an elastic rod

Submitted by Davide Bigoni on
research
buckling
elastica
force reversal
configurational force

What should be expected when an elastic rod is forced to slip inside a sliding sleeve and against an obstacle?

After buckling, configurational forces play a strong role, so that a force reversal is observed!

Enjoy the injection of an elastic rod at http://www.ing.unitn.it/~bigoni/injection.html

PhD Positions in Advanced Virtual Prototyping at the University of Manchester

Submitted by Lee Margetts on
research
phd
FEM
fusion
energy
biomechanics
virtual reality
cloud computing
parallel computing
HPC
I am currently recruiting new PhD students to join my research group at The School of Mechanical, Aerospace and Civil Engineering at the University of Manchester. The core focus of the group is advanced computing for engineering simulation. My research interests centre on extreme scale parallel computing, cloud computing and virtual reality simulation platforms, applied to scientific and engineering problems involving complex processes.

Legato lab report 2016 now online! Happy new year!

Submitted by Stephane Bordas on
research
lab report
legato report

Dear readers,

As usual, you can find here our best wishes from the Legato Team, including a summary of our activities in 2015 and some highlights to look forward to in 2016: 2016 Lab Report:

http://orbilu.uni.lu/bitstream/10993/23314/3/2016_Legato_News.pdf

Permalink: http://orbilu.uni.lu/handle/10993/23314

Happy new year!

Stéphane Bordas

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