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Too high stresses in thread root in 2D axisymmetric model in Abaqus.

Thread starter mobech
Start date Dec 11, 2013

Status: Not open for further replies.

Dec 11, 2013

mobech

Mechanical

I`ve made an axisymetric model of a threaded connection between two pipes. The connection between the threads is made in the "interaction" command (normal behavior, hard contact). I get too high stresses in the thread root and the stress consentration factor gets to 6.9, when it should be about 4 (I know this because of another model, made by an Phd student, and actual tests).
Can anyone help me with this problem?
I have attached the model.
Thanks!