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Dear all
I am modeling a steel pipe under cyclic loading. The ultimate strain demand of the pipe is expected to be around 10%. So theoretically necking is not expected. However, during the analysis, at final cycles with strain demand of 9-10 %, the pipes starts to neck . I refined the mesh but the necking still occurs. Oks note that the model does not include damage model and only a combined hardening rule has been specified fir steel. Does anyone know what is the origin of such a necking?

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Greetings,

Your model needs to be checked. Just visit our consultancy and get help from our experts.

https://caeassistant.com/consultancy/

Best wishes.

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