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Nastran Solver Fixed Issues 2024

Feature - Contact

Corrected reaction forces for models with bonded contact between surfaces with nonzero gaps.

Corrected temperatures on mid-side nodes generated when using TRSLTEMPDATA=ON with ENHCCONTACTRSLT=ON.

Corrected issue where singularities would occur on models with unsymmetric contact where the secondary contact region consisted of parabolic elements.

Improved processing of contact on large models with many BSCONP entries.

Solution - Nonlinear

Corrected penetration values used to determine adjusted contact stiffness in nonlinear contacted models with initial penetrations.

Corrected issue where nonlinear transient models with damping and pre-loaded bolts would fail due to singularities.

Solution - Heat Transfer

Corrected issue where applied heat loads were ignored on mid-side nodes of parabolic contact faces when ENHCCONTACTRSLT=OFF.

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