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A paper on: Mathematical modeling of the overall time-dependent behavior of non-ageing viscoelastic reinforced composites.
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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
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
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
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
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.
Phase-transforming and switchable metamaterials
Phase-transforming and switchable metamaterials
Dian Yang, Lihua Jin, Ramses V Martinez, Katia Bertoldi, George M Whitesides, Zhigang Suo
Buckling of Elastomeric Beams Enables Actuation of Soft Machines
Buckling of Elastomeric Beams Enables Actuation of Soft Machines
Dian Yang, Bobak Mosadegh, Alar Ainla, Benjamin Lee, Fatemeh Khashai, Zhigang Suo, Katia Bertoldi, George M Whitesides
Legato lab report 2016 now online! Happy new year!
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
First Reminder: Extreme Mechanics Letters – Special Issue on ‘Frontiers of mechanical metamaterials’
This themed issue on mechanical metamaterials invites contributions from different perspectives with the aim of highlighting the latest advances in the field.
The themed issue will focus on mechanical metamaterials in the general sense. This includes acoustic and elastic metamaterials as well as other types of metamaterials with unique mechanical and/or thermal properties at any length scale.
Topics of interest include the following: