侵蚀模型为什么会出现这样的结果

xuanshenyu

报错信息
84 t 3.2644E-01 dt 3.93E-03 write d3plot file            03/12/18 19:04:52

*** Warning 40630 (SOL+630)
     negative volume in solid element 128001 cycle 85 time= 3.3431E-01
     node  number      128161 deleted at time  3.3431E-01
     node  number      385282 deleted at time  3.3431E-01

      1 elements eroded due to negative volume.


failure due to negative volume.
f a i l e d   e l e m e n t   r e p o r t  time=  3.3431E-01
     number of failed solid  elements =           8
     number of failed beam   elements =           0
     number of failed shell  elements =           0
     number of failed tshell elements =           0

*** Warning 40630 (SOL+630)
     negative volume in solid element 381601 cycle 86 time= 3.3824E-01
     node  number      640801 deleted at time  3.3824E-01

      1 elements eroded due to negative volume.


failure due to negative volume.
f a i l e d   e l e m e n t   r e p o r t  time=  3.3824E-01
     number of failed solid  elements =           9
     number of failed beam   elements =           0
     number of failed shell  elements =           0
     number of failed tshell elements =           0
      87 t 3.3824E-01 dt 3.93E-03 write d3plot file            03/12/18 19:04:53

*** Warning 40630 (SOL+630)
     negative volume in solid element 385601 cycle 87 time= 3.4217E-01
     node  number      644005 deleted at time  3.4217E-01

      1 elements eroded due to negative volume.


failure due to negative volume.
f a i l e d   e l e m e n t   r e p o r t  time=  3.4217E-01
     number of failed solid  elements =          10
     number of failed beam   elements =           0
     number of failed shell  elements =           0
     number of failed tshell elements =           0
      89 t 3.4611E-01 dt 3.93E-03 write d3plot file            03/12/18 19:04:54
      92 t 3.5791E-01 dt 3.93E-03 write d3plot file

xuanshenyu

采用的是ERODIONG_NODES_TO_SURFACE接触算法

P-wenson

只看到警告信息，没有错误信息，由于负体积单元删除，是否开启了erod=1？

xuanshenyu

没有设置erod为1

xuanshenyu

P-wenson 发表于 2018-3-13 12:02
只看到警告信息，没有错误信息，由于负体积单元删除，是否开启了erod=1？

没有开启erod=1 我现在计算过程出现了下面的情况，本来一直提示警告信息，突然出来一个错误信息，并终止了计算，有什么办法解决吗？
*** Warning 40630 (SOL+630)
     negative volume in solid element 380808 cycle 3390 time= 1.0328E+00
     node  number      640007 deleted at time  1.0328E+00

      1 elements eroded due to negative volume.


failure due to negative volume.
f a i l e d   e l e m e n t   r e p o r t  time=  1.0328E+00
     number of failed solid  elements =         170
     number of failed beam   elements =           0
     number of failed shell  elements =           0
     number of failed tshell elements =           0

*** Warning 40630 (SOL+630)
     negative volume in solid element 124004 cycle 3394 time= 1.0340E+00
     node  number      124960 deleted at time  1.0340E+00
     node  number      382081 deleted at time  1.0340E+00

      1 elements eroded due to negative volume.


failure due to negative volume.
f a i l e d   e l e m e n t   r e p o r t  time=  1.0340E+00
     number of failed solid  elements =         171
     number of failed beam   elements =           0
     number of failed shell  elements =           0
     number of failed tshell elements =           0

*** Error 40509 (SOL+509)
     negative volume in solid element # 124806 cycle 3397
    3397 t 1.0349E+00 dt-3.39E+03 write d3plot file            03/13/18 14:21:17
    3397 t 1.0349E+00 dt-3.39E+03 write d3plot file            03/13/18 14:21:17

E r r o r   t e r m i n a t i o n                             03/13/18 14:21:17

S t o r a g e   a l l o c a t i o n