Optimization of shallow shells with different yield stresses in tension and compression
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The minimum weight problem of thin rigid-plastic shallow spherical shells is studied. The thickness of the shell is piece-wise constant and the material has different yield stresses in tension and compression. The flow theory of plasticity is employed. Both solid and sandwich shells are considered. Necessary optimality conditions are derived with the aid of optimal control theory.
[1] Jaan Lellep,et al. Optimization of plastic structures , 1991 .
[2] L. W. Hu,et al. Modified Tresca's yield condition and associated flow rules for anisotropic materials and applications , 1958 .
[3] Optimization of rigid-plastic shallow curved beams , 1996 .