{"id":51357,"date":"2021-01-17T14:21:26","date_gmt":"2021-01-17T14:21:26","guid":{"rendered":"\/forum\/forums\/topic\/double-curved-plate-simulation\/"},"modified":"2021-01-17T14:21:26","modified_gmt":"2021-01-17T14:21:26","slug":"double-curved-plate-simulation","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/double-curved-plate-simulation\/","title":{"rendered":"Double curved plate simulation"},"content":{"rendered":"
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Hi,<\/p>\n

I am having some problems with a simulation in where I deform an initial flat plate into a double curved plate. My goal is to validate analytical membrane and bending strain calculations that I did. But without a working simulation this is not possible. <\/p>\n

The problem is that my simulation won't converge for the displacements that I apply at the plate. I am using a material model with a stress-strain curve up to 100% strain. The displacements are applied by imposing a constraint on every node into x-y-z direction. These displacements are applied over 10 seconds. And should give the desired shape. However, the simulation does not converge at a certain point. <\/p>\n

I am using the arclength method to solve the simulation and large deflection is turned on. <\/p>\n

The nodal constraints are applied with an APDL which gives the nodal displacement in every direction, I don't have any other boundary conditions applied. Underneath you can see the mesh that I am using, the dimension of the plate are approx. 4500x500mm with 12mm thickness. <\/p>\n

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