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請教各位大佬，dyna仿真時，出現Warning 40045 (SOL+45) plasticity algorithm did not converge for MAT36E for 1 elements怎么辦做的是一個簡單的單軸拉伸仿真，樣件尺寸為20x70mm，網格尺寸為0.5mm。

/connector friction algorithm did not converge at 1238922 pointsThe plasticity/creep/connector friction algorithm did not converge at 1270393 pointsThe plasticity/creep/connector friction

40045 (SOL+45) plasticity algorithm did not converge for MAT272 for 1 elements *** Warning 40045 (SOL+45) plasticity algorithm did not converge for MAT272

包裹CFRP的鋼管混凝土柱可以計算出結果，去掉CFRP后反而第一增量步就無法收斂，提示 ***WARNING: THE PLASTICITY/CREEP/CONNECTOR FRICTION ALGORITHM DID NOT CONVERGE AT 8 POINTS ***NOTE: MATERIAL CALCULATIONS FAILED TO CONVERGE

= 0.1, FRICTION_TRANSITION_VELOCITY = 1ERROR: Model did not pass verification phase.

The plasticity/creep/connector friction algorithm did not converge at 1 pointsThe system matrix has 10 negative eigenvalues.The system matrix has 2 negative eigenvalues.