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- 2011-1-10
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- 1970-1-1
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发表于 2011-1-13 16:39:38
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来自 香港
Comments
1. "Von Mises Stress" and "Maximum Principal Stress" apply to 1-D, 2-D, and 3-D elements simultaneously. Other results apply to 2-D or 3-D elements exclusively. There are no specific results for 1-D elements.
2. For frequency response loadcases, (comp) may be replaced by (real) (imag) (magn) and/or (phas), depending on the complex format request.
3. "Maximum Principal Stress" is the maximum absolute principal stress :
max(abs(P1(Z1)),abs(P1(Z2)),abs(P3(Z1)),abs(P3(Z2))) for shells.
max(abs(P1),abs(P2),abs(P3)) for solids.
4. "P1 (major) Stress (max)" is the maximum major principal stress :
max(P1(Z1),P1(Z2)).
5. "P3 (minor) Stress (min)" is the minimum minor principal stress :
min(P3(Z1),P3(Z2)).
6. "Signed Von Mises Stress" is the Von Mises stress with traction/compression sign:
sign(P1+P2+P3) * VonMises.
至于用什么值来评价家,就要看你的材料类型了。根据材料力学,一般有四种常用强度理论,第一、二理论适用于脆性材料,一般用P1、P2、P3来评定,而第三、四理论适用于塑性材料,一般用Von Mises Stress 评定。 |
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