Hi there,
I'm using LS-DYNA as a tool in my study. Currently, i'm facing this problem:
Run-time check failure#3 - the variable 'count_ntime' is being used without being initialized
Please...help me...I've done so many new models, yet the same error keep occurring...
Thanks...
p/s: i can be reached by this e-mail: man [at] ppinang.uitm.edu.my
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I have two basic questions for the experts in the soft tissue biomechanics community.
a) I am interested in the biomechanics of a specific tendon in a specific high-speed deformation. How plausible is it for me to assume strain-rate independence, and therefore, the existence of a strain energy function? In other words, how accurate is the assumption of pseudoelasticity for tendons under high strain-rate? I feel comfortable with the assumption (evidence would help a lot, however) for tissues such as mesentery, skin and, I guess, even muscle.
Dear colleagues,
For people interesting in the simulation of solids mechanics with impact contact and friction, we are pleased to announce a new release of the Siconos software. The software is open-source, under GPL Licence and can be found at http://siconos.gforge.inria.fr/
Dear iMechanica commmunity,
we are looking for 3 PhD students at Oxford, starting from the 1st of October 2010 or as soon as possible thereafter. The closing date for the application is the 26th of July. The 3 students are required for two different research projects, namely:
1) Underwater blast on composite structures - open only to EU nationals; 2 PhD students are required. The studentships are advertised here
Lecture note for the course (28 Sept - 2 Oct, 2009) at the International Centre for Mechanical Sciences (CISM), Udine, Italy.
Welcome to the forum! Discussion topics were suggested initially as follow:
Metal foams, cell deformation (bending, buckling, plasticity and fracture), constitutive stress-strain behaviour of cellular materials, energy absorption, hypervelocity impact, shock wave behaviour, 1D shock modelling, shock attenuation, shock enhancement, Material Point Method (MPM) simulation and microscopic tomography experimental observation;
and later were extended to many related:
As the title suggests, there are two focuses of this discussion theme: impact and cellular materials.
Impact protection can be very practical problems in safety, fires and explosions, oil and gas industry, subsea structures, car manufacturing, nuclear industry, rocket space engineering, etc.
The Computational Physics group in the Atmospheric, Earth, and Energy Division at the Lawrence Livermore National Laboratory (LLNL) is solicitating applications for three postdoctoral appointments in the following areas. To access the full description and application instructions, please visit http://jobs.llnl.gov and search for the job numbers below:
008351: geomechanics of fluid-induced fault activation
008374: dynamic impacts into granular materials
008375: mechanics of dynamic impact and penetration into ceramics
Hello,
I'm doing some research in aircraft protection against impact, mainly refering to UAV's protection of the payload (avionics,etc..) during crash.
Does anyone knows where I can get some info about related topics (impact in composites, collision protection, reinforcement of structures, etc..)?
Thanks, Ivo Pires
