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Ansys Mechanical - What's New 2023 R1

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160 Connection Enhancements • Lagrange Multiplier for Remote Points and Joints: ‐ Remote Point and Joint objects have a new property: ‐ Formulation: This property enables you to specify the contact algorithm the application uses for a particular remote point computation. Options include- • MPC (default): This option creates multipoint constraint equations internally during the Mechanical APDL solution to tie the bodies together. • Lagrange Multiplier: This option enforces zero penetration when the contact is closed, making use of a Lagrange multiplier on the normal direction and a penalty method in the tangential direction. This formulation helps to overcome over- constraint problems better than the MPC formulation. ‐ In previous releases, these remote point-based boundary conditions used the MPC formulation internally. Now, with the option to specify Lagrange Multiplier, user can better eliminate over-constraints.

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