Abaqus输出单元刚度矩阵及质量矩阵

由Keywords Reference Manual可以查到输出命令格式为*Element Matrix Output

如果修改输出数据格式为十进制,可以添加命令*File Format,Ascii

这两句应在*End Step之前

格式如下

*File Format,Ascii

*Element matrix output, elset=aaavv, stiffness=yes, output file=user defined, file name=aaad

*End Step

对于单元集合Elset的设置请查询Keywords Reference Manual。可通过CAE创建一单元set,观察其在inp文件中的位置,并在相应位置输出所需要的单元集合。如下例

** Section: Section-1

*Solid Section, elset=_PickedSet2, material=Material-1

,

*End Instance

**

*Nset, nset=_PickedSet5, internal, instance=Part-1-1, generate

1,487,9

*Elset, elset=_PickedSet5, internal, instance=Part-1-1, generate

1,313,8

*Elset, elset=aaav, instance=Part-1-1

103, 104, 135, 136, 167, 168

*Elset, elset=__PickedSurf4_S4, internal, instance=Part-1-1, generate

8,320,8

*Surface, type=ELEMENT, name=_PickedSurf4, internal

__PickedSurf4_S4, S4

*End Assembly

修改inp文件后CAE中可能会提示相关错误信息,因此建议通过Abaqus Command运行,

D:\Data Abaqus Job=jobname interactive

其中interactive可不添加,其作用是可以跟踪分析进程。注意应先将Command文件夹中的abaqus.dat文件拷至inp文件所在位置。

下面分析输出矩阵结构

**

** ELEMENT NUMBER1 STEP NUMBER1 INCREMENT NUMBER1

** ELEMENT TYPEC3D8R

*USER ELEMENT, NODES=8, LINEAR

** ELEMENT NODES

**46,47,56,55,1,2,11,10

1,2,3

*MATRIX,TYPE=STIFFNESS

139773.98076923,

-63100.961538462,139773.98076923

63100.961538462, -63100.961538462,139773.98076923

87865.413461538, -12620.192307692,63100.961538462,139773.98076923

12620.192307692, -38336.509615385,12620.192307692,63100.961538462

139773.98076923,

63100.961538462, -12620.192307692,87865.413461538,63100.961538462

63100.961538462,139773.98076923

37860.576923077, -12620.192307692,12620.192307692,87865.413461538

63100.961538462,12620.192307692,139773.98076923

12620.192307692, -88341.346153846,63100.961538462,63100.961538462

87865.413461538,12620.192307692,63100.961538462,139773.98076923

-12620.192307692,63100.961538462, -88341.346153846, -12620.192307692

-12620.192307692, -38336.509615385, -63100.961538462, -63100.961538462

139773.98076923,

87865.413461538, -63100.961538462,12620.192307692,37860.576923077

12620.192307692,12620.192307692,87865.413461538,12620.192307692

-63100.961538462,139773.98076923

-63100.961538462,87865.413461538, -12620.192307692, -12620.192307692

-88341.346153846, -63100.961538462, -12620.192307692, -38336.509615385

12620.192307692, -63100.961538462,139773.98076923

-12620.192307692,12620.192307692, -38336.509615385, -12620.192307692

-63100.961538462, -88341.346153846, -63100.961538462, -12620.192307692

87865.413461538, -63100.961538462,63100.961538462,139773.98076923

-38336.509615385,12620.192307692, -12620.192307692, -88341.346153846

-63100.961538462, -12620.192307692, -138346.18269231, -63100.961538462

63100.961538462, -88341.346153846,12620.192307692,63100.961538462

139773.98076923,

-12620.192307692,87865.413461538, -63100.961538462, -63100.961538462

-88341.346153846, -12620.192307692, -63100.961538462, -138346.18269231

63100.961538462, -12620.192307692,37860.576923077,12620.192307692

63100.961538462,139773.98076923

12620.192307692, -63100.961538462,87865.413461538,12620.192307692

12620.192307692,37860.576923077,63100.961538462,63100.961538462

-138346.18269231,63100.961538462, -12620.192307692, -88341.346153846

-63100.961538462, -63100.961538462,139773.98076923

-88341.346153846,63100.961538462, -12620.192307692, -38336.509615385

-12620.192307692, -12620.192307692, -88341.346153846, -12620.192307692

63100.961538462, -138346.18269231,63100.961538462,63100.961538462

87865.413461538,12620.192307692, -63100.961538462,139773.98076923

63100.961538462, -88341.346153846,12620.192307692,12620.192307692

87865.413461538,63100.961538462,12620.192307692,37860.576923077

-12620.192307692,63100.961538462, -138346.18269231, -63100.961538462

-12620.192307692, -38336.509615385,12620.192307692, -63100.961538462

139773.98076923,

12620.192307692, -12620.192307692,37860.576923077,12620.192307692

63100.961538462,87865.413461538,63100.961538462,12620.192307692

-88341.346153846,63100.961538462, -63100.961538462, -138346.18269231

-63100.961538462, -12620.192307692,87865.413461538, -63100.961538462

63100.961538462,139773.98076923

-138346.18269231,63100.961538462, -63100.961538462, -88341.346153846

-12620.192307692, -63100.961538462, -38336.509615385, -12620.192307692