June 12, 2022 at 6:55 pmShahriarSubscriber
I know how Penalty method works for frictional/frictionless contact.
But how does Penalty work for Bonded contact?
What is the difference to MPC Bonded? (except overconstraints)
June 13, 2022 at 10:32 amErik KostsonAnsys Employee
See our help manual for more information.
(MPC is based on constraint equations, while penalty is based on contact stiffness approach which is updated for frictional nonlinear type of contact, but not for bonded linear type of contact (so whatever initial contact stiffness Ansys calculates or the user provides (normal stiffness set to Absolute value), then that is used for the penalty stiffness of the bonded contact throughout the analysis, and is not updated/changed like a frictional contact which requires iterations and update of the initial contact stiffness). We also have courses on contact which can be helpful.
December 30, 2022 at 9:19 ambhagwantPAnsys Employee
@Shahriar, sharing some more useful information in addition to above:
Contact Formulation Theory (ansys.com)
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