多线性随动强化kinh问题

sh_0320

问题说明：

  热－力间接耦合，计算温度场和变形场，材料为304不锈钢。同样的工艺参数下，用BKIN材料模型可以得到塑性变形，但用KINH材料模型，没有塑性变形。
KINH定义如下：
TB,PLASTIC,1,6,11,KINH                       
TBTEMP,20.0                              
TBPT,,0.00,377                           
TBPT,,0.05,481                        
TBPT,,0.1,571
TBPT,,0.15,651
TBPT,,0.2,725
TBPT,,0.25,793
TBPT,,0.3,858
TBPT,,0.35,919
TBPT,,0.4,977
TBPT,,0.45,1033
TBPT,,0.5,1087

TBTEMP,200.0                              
TBPT,,0.00,280                           
TBPT,,0.05,356                        
TBPT,,0.1,423
TBPT,,0.15,482
TBPT,,0.2,537
TBPT,,0.25,587
TBPT,,0.3,635
TBPT,,0.35,681
TBPT,,0.4,724
TBPT,,0.45,765
TBPT,,0.5,805

TBTEMP,400.0                              
TBPT,,0.00,225                           
TBPT,,0.05,286                        
TBPT,,0.1,340
TBPT,,0.15,388
TBPT,,0.2,431
TBPT,,0.25,472
TBPT,,0.3,511
TBPT,,0.35,547
TBPT,,0.4,582
TBPT,,0.45,615
TBPT,,0.5,647

TBTEMP,600.0                              
TBPT,,0.00,196                           
TBPT,,0.05,250                        
TBPT,,0.1,296
TBPT,,0.15,337
TBPT,,0.2,376
TBPT,,0.25,411
TBPT,,0.3,445
TBPT,,0.35,476
TBPT,,0.4,507
TBPT,,0.45,536
TBPT,,0.5,563

TBTEMP,800.0                              
TBPT,,0.00,157                           
TBPT,,0.05,200                        
TBPT,,0.1,237
TBPT,,0.15,270
TBPT,,0.2,301
TBPT,,0.25,330
TBPT,,0.3,356
TBPT,,0.35,382
TBPT,,0.4,406
TBPT,,0.45,429
TBPT,,0.5,452

TBTEMP,1000.0                              
TBPT,,0.00,94                           
TBPT,,0.05,120                        
TBPT,,0.1,142
TBPT,,0.15,162
TBPT,,0.2,180
TBPT,,0.25,197
TBPT,,0.3,213
TBPT,,0.35,228
TBPT,,0.4,243
TBPT,,0.45,257
TBPT,,0.5,270

请教：不知KINH定义什么地方出了问题？