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发表于 2013-5-2 12:10:09
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来自 日本
吃草的鸟 发表于 2013-5-2 12:00
这里是将应变和应力分解为膜应变和弯曲应变Δε=Δεm+Δεb,这里只是将不为0的独立分量拿出来,因为不 ...
Well. I am wrong, the supposition of shell is that stress(33)=0, not strain(33). In 非线性分析, you cannot obtain stress(33)=0 directly. You need another NR iteration to do it.
We have shear strain but there is no 弯曲应变 in continuum mechanics. By the way, your σbxx,σbyy,σbxy is meaningless. What your strain and stress tensor should be strain(exx, eyy, ezz, exy, 0, 0 ) and sigmlg0={σxx,σyy,0, σxy,0, 0} as you supposed. |
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