Pre-stress & Initial stress
Submitted by Amin on Sun, 2007-11-11 20:15.
Hi AllI am working on Simulation of nonlinear phenomena in MEMS devices. I do not know for residual stress in Microcantilever beam I should use pre stress or initial stress. I checked initial stress by Shell 181 and solid 186, but answers are for from experiments (around 100 times). I do not know what the difference between initial stress and pre stress is.
Initial strain need not have initial stress...
R. Chennamsetti, Scientist, R&D Engineers, India
I think pre-stress is always associated with some pre-strain. But, initial stress need not have a corresponding initial strain.
For example, take a free bar, heat it. Initial strain is developed because of heating. But, there is no corresponding initial stress. Similarly with the initial stress also.
The initial stress need not have a corresponding initial strain.
It is sure that many people are not familiar with initial strain
Prof Joseph ZARKA Scientific Director CADLM 9 Rue Raoul Dautry 91190 Gif Sur Yvette (France)
Can you see the difference between these two formulations ?
Prof Joseph ZARKA Scientific Director CADLM 9 Rue Raoul Dautry 91190 Gif Sur Yvette (France)
I cant add formula please contact me directly
How can I use python to create initial stress?
Hi, all!
Do you guys try to use python to create initial stress. It bothers me for a long time. Please cantact me directly if you know it.