失效準則ansys代碼的案例
Hashin失效準則VUMAT源代碼（一起學習交流VUMAT吧）
c http://abaqus-users.1086179.n5.nabble.com/Hashin-damage-theory-td12032.html
subroutine vumat(
c Read only -
1 nblock, ndir, nshr, nstatev, nfieldv, nprops, lanneal,
2 stepTime, totalTime, dt, cmname, coordMp, charLength,
3 props, density, strainInc, relSpinInc,
4 tempOld, stretchOld, defgradOld, fieldOld,
5 stressOld, stateOld, enerInternOld, enerInelasOld,
6 tempNew, stretchNew, defgradNew, fieldNew,
c Write only -
7 stressNew, stateNew, enerInternNew, enerInelasNew )
c
include 'vaba_param.inc'
c
c 3D Orthotropic Elasticity with Hashin 3d Failure criterion
c
c The state variables are stored as:
c state(*,1) = material point status
c state(*,2:7) = damping stresses
c
c User defined material properties are stored
展開 Hashin失效準則VUMAT源代碼（一起學習交流VUMAT吧）
c http://abaqus-users.1086179.n5.nabble.com/Hashin-damage-theory-td12032.html
subroutine vumat(
c Read only -
1 nblock, ndir, nshr, nstatev, nfieldv, nprops, lanneal,
2 stepTime, totalTime, dt, cmname, coordMp, charLength,
3 props, density, strainInc, relSpinInc,
4 tempOld, stretchOld, defgradOld, fieldOld,
5 stressOld, stateOld, enerInternOld, enerInelasOld,
6 tempNew, stretchNew, defgradNew, fieldNew,
c Write only -
7 stressNew, stateNew, enerInternNew, enerInelasNew )
c
include 'vaba_param.inc'
c
c 3D Orthotropic Elasticity with Hashin 3d Failure criterion
c
c The state variables are stored as:
c state(*,1) = material point status
c state(*,2:7) = damping stresses
c
c User defined material properties are stored
展開 ANSYS里的自定義失效準則怎么定義的？
想請教各位：
ANSYS里的自定義失效準則怎么定義的呢？一定要用UPFs編用戶子程序才行嗎？UPFs看起來非常復雜啊，怎么辦？
又沒有人做過這個阿？
謝謝了！！！！
