Currently I’ve been trying to do some simulation about a concrete shear damage problem through quasi static analysis in ABAQUS/explicit, in which a concrete damage plasticity model with both tensile and compressive damage is used.
I’ve followed the advices about quasi static analysis, first to conduct an eigen-frequency analysis to confirm the minimum calculation time period in the following quasi static analysis, then to amplify this time period so as to make sure that the kinetic energy is kept to an acceptable low level.
Displacement controlled loading is used in my model, and the loading surface has been coupled to a single node for easy extraction of reaction force on the surface. But every time when I try different time period (from 0.002s to 0.2s), the Reaction force results change dramatically.
So here’s the question:
a. Is there any other ways to decrease the kinetic energy in a quasi-static analysis?
b. Why are there significant changes in Reaction Force results in ABAQUS quasi static analysis?
Thanks for your time and patience;-)
https://www.sciencedirect.com/search?qs=Reaction%20Force%20results%20in%20ABAQUS%20quasi%20static%20analysis&show=25&sortBy=relevance
Hi Valery,
Thanks for your reply, actually my problem is a static problem, with loading added slowly(about 1 hour for each specimen) and monotonically on the specimens. So in my opinion a quasi static analysis is suitable for this problem.
Hi Md. Washim Akram,
Thanks for the paper suggested, I'll read it later on.
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