http://arxiv.org/PS_cache/arxiv/pdf/0903/0903.5321v1.pdf
The above article is an April Fool's joke. It reminded me of the recent "discoveries" in the mechanics community regarding stress tensor.
Regards,
Arash
During Fatigue temperaure of materials increases due to plastic deformation. I am trying to calcualte plastic dissipation in UMAT and use it as heat source in HETVAl to get temperature rise. I do not know how to add plastic dissipation calculation in UMAt. I am wondering if some body give me an example which is done close to what I want to do.
Hi everyone,
Now I am trying to implement Ogden model in Comsol Multiphysics, but I had some problem.
Then I realized that in Comsol, it's possible to implement a nonlinear young's modulus.
But I am a little confused.
If you have a nonlinear Young's modulus, in the stress-strain curve, E is the tangent of this curve.
For hyperelastic material, let's say Ogden material. It's usually a nonlinear stress-strain curve as well.
Hi Every Body,
I want to lie two parts to have the same displacement when applying a pressure:
for exemple tow coaxial hoses whiche become longueur when applying a pressure (tubes).
there is :
KINEMATIC COUPLING but it works only for a déformable part with à rigid part
i want exactly do the same as what KINEMATIC COUPLING do but for two defromable parts.
thanks in advance
I am trying to combine UMAT and UEL in my Abaqus calculation to simulate crack propagation by using a damage criterion. My UMAT calculates the damage variable in each time increment and whenever the damage variable violates the damage criterion in one or more elements, I should seperate the damaged element(s) via XFEM theory which can be implemented into a UEL code; therefore, I should use both UMAT and UEL in my calculation. Is there any way to combine these two codes together?
hii every one ... i am an undergraduate student in mechanical enggineering . can any 1 suggest me a good project which includes 1.both computer oriented and also lab oriented project.
2. also a project in fatigue analysis.
In the finite element analysis of a transient problem, the usual procedure is to discretize the space (domain) using finite elements, while in the time direction, a time-stepping scheme based on finite differences is used. Is it possible to use a finite element type discretization in time also? Is there any work done in this manner?
Can anyone familiar with Abaqus animations? I have a multistep simulation and in each step I want to show different elements and then get the movie of this. For example lets say I have 1:100 elements: at first step I just want to see 1:50 elements at second step 1:51 elements third 1:52 and continuing like that. How can I get this animation at Abaqus. Is there a commond to do is at the input file? Or how is possible at ODB?
Best Thanks for your help
eMRECAN sOYLEMEZ
Shanghai University
Shanghai Institute of Applied Mathematics and Mechanics
and Department of Mechanics
Position:
