alleak
Mechanical
- Sep 27, 2005
- 34
I am analysing a 3d composite(carbon/epoxy) pressure vessel with ansys and i want to obtain tsai-wu failure criterian.I have only these properties
1,2 or x,y are in plane 3 or z is out of plane)
MODULUS: E1,E2,G12
STRENGHT: Xt,Xc,Yt,Yc,S
POISON RATIO:NU12
but there are more properties required by ansys,if i leave other blank ansys shows an error,until i use a value for modulus E3,and strenghts Zt,Zc,now ansys will solve the problem.I think this is because The Tsai-Wu failure criteria used in ansys are 3-D versions of the failure criterion.plus these there are other properties which leaving them blank does not make an error in ansys but this may influnce on the results.these properties are:
G23,G13,NU23,NU13,Zt,Zc,Syz,Sxz.now what should i do
Cheers
alleak
1,2 or x,y are in plane 3 or z is out of plane)MODULUS: E1,E2,G12
STRENGHT: Xt,Xc,Yt,Yc,S
POISON RATIO:NU12
but there are more properties required by ansys,if i leave other blank ansys shows an error,until i use a value for modulus E3,and strenghts Zt,Zc,now ansys will solve the problem.I think this is because The Tsai-Wu failure criteria used in ansys are 3-D versions of the failure criterion.plus these there are other properties which leaving them blank does not make an error in ansys but this may influnce on the results.these properties are:
G23,G13,NU23,NU13,Zt,Zc,Syz,Sxz.now what should i do
Cheers
alleak