Blog posts
dracker prager plasticity model with softening
Hi my friends,i am using Dracker prager plasticity model to simulate uniaxial compression (softening) of coal samples.in dracker prager, the shear criterion is linear, and the hardening type is compression. there is a table that i should fill out, this table composed of yield stress and abs. plastic stain. my question is:- how can i fill out this table by using the experimental data (stress-strain diagram for uniaxial compression test) ?? shall i convert these data using any equations??
Postodoctoral position in multiphase flow in porous media, University of Texas at Austin
The postdoctoral researcher will develop three-dimensional, network-like
models for fluid displacement in low permeability porous media. Such
porous materials involve multiple relevant length scales (e.g. micro-fractures
connected to the adjacent matrix) and models to date are not representative.
This research-only position will be supervised by Drs. Maša
Prodanović and Steven L. Bryant from Department of Petroleum and Geosystems Engineering, University of Texas at Austin.
For more information and application procedure, please visit
Beam on elastic foundation
Dear All,
I am wondering that is there any closed form solution for beam on elastic foundation in case which we have got two stiffness for the springs namely (axial and shear stiffness). The axial force are born because of the some loading conditions in the support.Would you please help me about this?
Thank you,
Parisa
Post necking behavior (Steel)
I am simulating the tensile test of steel specimen to confirm that
resulting force displacement data matches with experiment. Since the
true stress true strain formulas are not valid beyond necking i have to
rely on actual neck measurements of flat sheet geometry. I have
identified swifts parameter also to use in the material model but some
how i am unable to match my results beyond necking. Any suggestions??
USNCCM-11 Minisymposium on Multiscale Transport Phenomena in Biological and Biomedical System
Dear Colleagues:
Wing Kam Liu and I (Ashfaq Adnan) would like to invite you to submit abstract(s) to the following mini-symposium at the upcoming 11th U.S. National Congress on Computational Mechanics (http://www.usnccm.org/). The congress is scheduled to be held on July 25-29, 2011 in Minneapolis, Minnesota, USA.
14.2 Multiscale Transport Phenomena in Biological and Biomedical System
Strain stiffening induced by molecular motors in active crosslinked biopolymer networks
We have studied the elastic response of actin networks with both compliant and rigid crosslinks by modeling molecular motors as force dipoles. Our finite element simulations show that for compliant crosslinkers such as filamin A, the network can be stiffened by two orders of magnitude while stiffening achieved with incompliant linkers such as scruin is significantly smaller, typically a factor of two, in excellent agreement with recent experiments.
Had somebody implemented the MMA or GCMMA algorithm (Svanberg) in the 99 lines Topology Optimization Matlab code(Sigmund)?
Hello everybody,
I need some help. I have a lot of problems trying to implement the MMA or GCMMA optimizer in the Sigmund's Topology Optimization code (99 lines). Have you ever do that?. Please, is very important for my pregraduate thesis.
Thanks.
Felipe Cárdenas Díaz
Universidad de Concepción - Chile
东南大学工程力学系诚聘国内外优秀人才
东南大学力学学科的历史可追溯到上世纪50年代，由原南京工学院的胡乾善和梁治明两位知名教授领衔成立力学教研组、设置力学专业、招收本科生和研究生。经过五十余年的建设，东南大学工程力学系现有力学一级学科博士后流动站，工程力学和固体力学两个二级学科博士点，力学一级学科硕士学位授予权（含工程力学、固体力学、动力学与控制、流体力学四个二级学科硕士点），工程力学本科专业。由于学科发展需要，现面向海内外诚聘师资。
一、招聘条件 获得知名大学力学或相关学科博士学位；发表过多篇高水平学术论文；有较强的团队合作能力及宽阔的学术视野；
二、招聘专业 工程力学、固体力学、动力学与控制、流体力学。
三、应聘材料 中英文学术简历各一份、3篇代表性论文全文。
Lecture Notes on Composites
In addition to the notes on stability that I've already posted, I have a set on Composites, which also originated from a lecture course that I gave in Ecole Polytechnique, around 2002. In the hope that they may be of interest at least to someone, here they are! Please do remember that they are just notes and may not be error-free.