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3D stress calculation: no mesh on domain 1 when choosing mapped option

Posted 1 oct. 2018, 21:18 UTC−4 Mesh, Structural Mechanics, Equation-Based Modeling Version 5.3a 0 Replies

Shanshan
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Hi,

I am trying to calculate the stress due to a point load in 3D block geometry. When I am using a mapped option mesh, no matter which size of mesh that I choose, comsol always return an error "no mesh on domain 1. Do not find systematic matrix.". I set the mapped mesh for entire geometry.

But when I change to use a free tetrahedral option for generating the mesh, choosing the extremely fine mesh size, my model works. But if I try to design the element size as 1 km, comsol crashes.

Did anyone meet the same problem before? I want to use 1km*1km for each element, but the model never works.

Can anyone help me?

Thanks!

0 Replies Last Post 1 oct. 2018, 21:18 UTC−4
COMSOL Moderator

Hello Shanshan

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