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a problem in solid mechanics/ study steps /3D model

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Hi, I am a beginner of COMSOL. I am trying to modeling a simple case of building a concrete plate on a soil mass, which includes two steps: 1st only the soil, get the initial stress state by gravity loading; 2nd place a concrete plate on the top of soil, still gravity loading, to get the stress re-distribution.

first I built a 2D model, it works well, the results are reasonable, however when I built a 3D model, there is no stress states changing by adding a concrete plate in the results.

I post the 2D and 3D model here, can anyone check it for me? thank you so much.


0 Replies Last Post 2012年8月19日 GMT-4 02:14
COMSOL Moderator

Hello Jinfu Xiao

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