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Convergence problem-please help

Convergence problem-please help

Convergence problem-please help

(OP)
Hi there,

I am trying to do damage modeling in ANSYS using the cohesive zone material model. So, initially to test if it works I tried it on a simple curved model using solid 185 element for the curved material and inter205 element for the interface between the 2 curves. But I am always getting this error: "There are 2 small equation solver pivot terms." after few load steps. I tried using all the element formulations and increased the number of load steps but I still have this problem. I would be really grateful if you could help me on this. Please find the input file,which I created for your understanding, for this model in the attachment.

Thanks,
Vinston

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