{"id":357492,"date":"2024-03-17T19:07:07","date_gmt":"2024-03-17T19:07:07","guid":{"rendered":"\/forum\/forums\/topic\/problems-with-meshing-in-static-analysis\/"},"modified":"2024-03-19T12:21:14","modified_gmt":"2024-03-19T12:21:14","slug":"problems-with-meshing-in-static-analysis","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/problems-with-meshing-in-static-analysis\/","title":{"rendered":"Problems with meshing in static analysis"},"content":{"rendered":"
Hi all. I’m calculating a die with teeth. I use two steps. In the first step I press the die into the surface, in the second step I add a side load to move the pressed die. Both splints are made of steel. I use bilinear isotropic hardening. In both cases I use the applied force. I use symmetry along the movement of the die, everything should work. The die is as close to the surface as possible. The mesh is structural and quite fine (0.1 mm on the tooth and surface). The total mesh is 900k elements, the problem is solved within 20 hours. I use large deformations.<\/div>\n
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The problem is that at the end of the first step the mesh begins to behave inappropriately; it begins to show sharp corners, violating its integrity. At the end of the day I have a distorted error.<\/div>\n
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Picture of the depressed surface from the tooth:<\/div>\n
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I also tried different types of contacts, used the detection radius (on\/off), I tried touch control – without it the problem cannot be solved at all. I also tried using two contacts at once: one with Gaussian points, the second nodal normal that target, this also does not work. Why is this happening?<\/div>\n","protected":false},"template":"","class_list":["post-357492","topic","type-topic","status-closed","hentry","topic-tag-biomechanics","topic-tag-biomedical-1","topic-tag-poor-quality-elements"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t