Nanoscale locomotion without fuel
A report from Nature News & Views (http://www.nature.com/nature/journal/v519/n7541/full/519037a.html)
about our work on nanoscale directional motion (http://imechanica.org/node/17978).
Blog posts
Professor Christensen published Part III of the failure theory in JAM
Professor Richard Christensen (Stanford University) published Part III of his series of papers on the failure theory. This is a short, but interesting view-point paper. The paper is attached (JAM, April issue, 2015).
Postdoctoral position at SISSA-International School for Advanced Studies
A postdoctoral position is open at SISSA (http://www.sissa.it/) within the research group SISSA-mathLab (http://mathlab.sissa.it/). Prof. Antonio DeSimone (PI of the ERC Advanced Grant 340685-MicroMotility) is seeking a postdoctoral researcher to carry out an experimental activity focused on the study of low Reynolds number micro-swimmers. The postdoctoral researcher is expected to collaborate with other scientists of the group. A suitable candidate should have a strong background as an experimentalist.
Plane stress formulation of hyperelastic material
Hi
I'm looking for good refrences for plane stress formluation of transvesrly isotropic hyperelastic materials (imcompressible). I'm wondering if someone help me and introduce some usefull material about it.
Kind Regards
Ali
An interesting paper
I came across this very instructive article, so I decided to share it here.
Enjoy!
ABAQUS - Input file - Definition of nonlinear spring (SPRINGA)
Hello all,
I am currently working at a structural dynamic problem with Abaqus/Explicit. The work involves an impact and in this context the goal is to connect two rigid bodies (with their constraint, mass and velocity field) to each other with a NONLINEAR SPRING; the element used is the so called SPRINGA element.
Using File-->Import-->Model I have imported the input file, which I have previously modified in the following way:
*Spring, elset=SPRING-spring, nonlinear
0,0
1000,0.002481
2000,0.004963
Postdoctoral Position Opening at Stanford University
Prof. Wei Cai at the Mechanical Engineering Department of Stanford University is seeking a postdoctoral researcher to lead a project on the modeling of dislocations in strained semiconductor structures. The major task of this project is the development of an interface between the Dislocation Dynamics program (ParaDiS) with a general purpose Finite Element Method (FEM) program (such as ABAQUS). Molecular dynamics simulations may be required to provide physical input to the Dislocation Dynamics model.
Call for abstracts ICCM2015, Auckland, New Zealand: computational limit and shakedown analysis
Dear Colleagues,
We are inviting you to submit abstracts on ICCM2015, Auckland, New Zealand:
MS-008 Computational Limit and Shakedown Analysis.
We are looking forward to your presentations at our symposium.
Best regards,
Canh Le
rate-state dependent friction in ANSYS
Dear collegues
a quick question:- I am playing with continuum models of Contact (Hertz, Westergaard and so on) and friction laws. However, I prefer for my students to use ANSYS FEM code. In Ansys there is standard Coulomb, rate-dependence but not rate-state (unless one codes some user subroutines). See
https://www.sharcnet.ca/Software/Fluent14/help/ans_ctec/Hlp_ctec_realke…
Enforcing tie constraint
Dear iMechanica users,
I have a problem which I would appreciate any input on how to solve. I have an indentation problem, in which I indent a cell with an enclosing membrane. Therefore, I create contact between the (rigid) indenter and membrane, and tie the membrane and intracellular solid elements together. The model is an axisymmetric model, with CAX3 and CAX4R making up the intracellular axisymmetric solid elements and SAX1 the axisymmetric membrane.