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Plastic instability for a plastic orthotropic spherical pressure vessel under internal impulsive loading. (English. Russian original) Zbl 1501.74029

J. Appl. Mech. Tech. Phys. 63, No. 2, 343-346 (2022); translation from Prikl. Mekh. Tekh. Fiz. 63, No. 2, 192-196 (2022).
Summary: This paper describes an investigation of plastic instability of an internally impulsively loaded thin-walled spherical pressure vessel with plastic orthotropy. In the framework of finite deformation and Hill’s orthogonal anisotropic yield criterion, the vessel instability strain is derived, which includes the effects of the plastic orthotropy and strain rate.

MSC:

74G60 Bifurcation and buckling
74C15 Large-strain, rate-independent theories of plasticity (including nonlinear plasticity)
74E10 Anisotropy in solid mechanics
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