Blog posts
Active Topographic Surface Renewal
Check out our new work on topography driven surface renewal published in Nature Physics:
https://www.nature.com/articles/s41567-018-0193-x
We are building a new dynamic group at University of Chicago bringing together physicists, surgeons, and engineers to tackle some of the most
challenging problems in tissue/material interfaces with the goal of improving on many current medical devices.
Error using Neo-hookean in abaqus
Hi everyone,
I am trying to solve a problem of twisting a hyperelastic material(compressible neo-hookean) in abaqus.
The problem has been taken from 10.12.5 TWISTING COLUMN in the textbook NONLINEAR SOLID MECHANICS FOR FINITE ELEMENT ANALYSIS: STATICS (Javier Bonet,Antonio J. Gil,Richard D.Wood).
Lamda and mu are given as 100 each, so I have calculated the Neo-hookean coefficients for abaqus which came out to be C10=50 and D1=0.012
I am using abaqus static-general with time steps of
*Step, name=Step-1, nlgeom=YES, inc=10000
Faculty position at University of Michigan, Ann Arbor
A faculty position in experimental mechanics / materials is available in the Department of Mechanical Engineering at the University of Michigan, Ann Arbor. The closing date is December 1, 2018. Please see the attached advertisement for details.
Anomalous bulging behaviors of a dielectric elastomer balloon under internal pressure and electric actuation
When a clamped membrane of elastomer is subject to a lateral pressure, it bulges into a hemispherical balloon. However, for a clamped membrane of dielectric elastomer (DE) under a lateral pressure as well as a voltage through the thickness, it may bulge into a regular hemispherical balloon or an irregular shape. This work focuses on the anomalous bulging behaviors (i.e. the irregular bulging shape) of a DE balloon under electromechanical coupling loading.
Introduction to the Unified Mechanics Theory
The attached poster page has a self explanatory introduction of the Unified Mechanics Theory.
orthotropic
hello all.
I work on the plates laminate orthotropic, in the calculation of the constatnte of rigidities I found two matrices of rigidity which are mantionent on the two figures following:
somebody can explain to me which is the matrix right, and thank you by advance.
PhD positions in mechanics of metamaterials at the University of Minnesota
PhD positions are available at the University of Minnesota in the group of Prof. Stefano Gonella. The positions are in the general area of mechanics and physics of solids and structures, with emphasis on mechanical metamaterials. Topics of current interest are:
1) Topological metamaterials;
2) Nonlinear waves in metamaterials and architected solids;
3) Tunable and programmable metastructures.
Journal Club for September 2018: Nanomechanics of Covalent Crystals and Elastic Strain Engineering
Nanomechanics of Covalent Crystals and Elastic Strain Engineering
Yang Lu
Department of Mechanical Engineering, City University of Hong Kong