王进-Ansys Mechanical_MAPDL求解器最新进展和展望.pdf

1、 2025 ANSYS,Inc.The Latest Advancements in Mechanical/MAPDL Solver and Forward-LookingJin Wang,Senior Director,MAPDLSept.12th,2025 2025ANSYS,Inc.2Outline Traditional structure analysis-When deformation approaches its limits and beyond Models with distinctive embedded materials and composites-Easy mo

2、deling without sacrificing accuracy Complicated assembly-Robus contacts and rigid body motions Large models-HPC/GPU,database and memory,linear equation solvers Linear dynamics-Rotatory system with local nonlinearity or based on nonlinear solutions 2025ANSYS,Inc.3Structure with large deformation Tota

3、l strain 200%Nonlinear mesh adaptivity(NLAD)-Repair the distorted mesh-Deformation reaches a too high value to be realistic Element removal-Based on Users definition directly Strain-based criteria(ESTN or PSTN)defined by user-Self contact pairs automatically generated Unsmoothed boundaries:stress co

4、ncentration 2025 ANSYS,Inc.4Nonlinear mesh adaptivity Material removal at 25R2 Remove material by inserting a void as an ellipse Current capabilities-2D only-NLGEOM,ON and OFF-Static and quasi-staticFuture work NLAD-Support coupled physics-More material Bergstrom-Boyce,TNM,PolyUMOD,Anand-UPF Process

5、 simulation 2025 ANSYS,Inc.5Structure beyond deformation limit:Damage analysis Solution is-Mesh size and time step dependent-Long solution time for repeated loadings-Happens in different material models Regularized generalized TMF damage with cycle jump-Decouple damage models from other material mod

6、els-Introduce regularizations:global and local:to avoid mesh size dependency-Cycle-jump:to reduce solution timeGeneralized DamageMaterial-agnosticMulti-field including thermalRegularized via nonlocal fieldThermo-mechanical-damage Analysis with Cycle-JumpCycle-JumpAccelerate fatigue analysisCLOAD wor