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Showing results for tags 'divergence'.
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Hi Everyone, I'm running an optimisation with multiple load cases. The solution gets really close to converging (in the .OUT file) the first and second convergence criterion are met and just as its about to converge the solution diverges. It runs for the maximum number of iterations (80) before it stops. Is there any way to change how long the optimisation will for so that a solution is reached before the maximum number of iterations are reached? Or does it more than likely suggest my load cases are incorrect, or theres something wrong with my model? etc.
Hello Community, how can I prevent my implicit simulation to diverge (see attached figures of the engine OUT file)? There is a sentence in the RADIOSS v13 User Guide: "For the hyper-elastic type laws (42, 62, 69, and 82), special treatments have been done to avoid the divergence." I have a problem similar to “Example 42: Rubber Ring” with my own model (also hyper-elastic material - MAT42). The settings in the engine file for my model are almost the same to Ex.: 42.