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Buckling, postbuckling and imperfection-sensitivity: Old questions and some new answers. (English) Zbl 1158.74361
Summary: From the point-of-view of economy and safety it is desirable to employ structural configurations with a favorable strength-to-weight ratio and a sufficiently small imperfection-sensitivity. The presentation focuses on two examples falling into this category: The axially compressed cylindrical shell filled with – and/or surrounded by – a compliant core, and auxetic structures. Both exhibit unexpected aspects in their load-carrying behavior and have a significant weight-savings potential.

MSC:
74G60 Bifurcation and buckling
74H55 Stability of dynamical problems in solid mechanics
74K25 Shells
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