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Test case not converging

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Old   June 13, 2016, 10:54
Default Test case not converging
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Yunus
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Basically what I'm trying to do is a biological model of a breast. I created a testcase, which is a simple hemisphere, set the plane representing the chest wall to zero displacements and applied a gravity parallel to the plane. I'm using a linear elastic model. Unfortunately it just converges only up to 1/10 of the earths gravitational pull, any gravity bigger triggers the output UNCONVERGED SOLUTION.
I'm using 10node tetrahedral elements. I've already tried different mesh sizes and time steps.

How can I get the testcase to converge?
Thank you in advance.
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