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首页> 外文期刊>Zeitschrift fur Angewandte Mathematik und Mechanik >Micropolar shells with thickness inflation and independent micro-rotations
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Micropolar shells with thickness inflation and independent micro-rotations

机译:具有厚度通胀和独立微旋转的微息壳

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摘要

Starting from constrained three-dimensional Cosserat elasticity and in a total Lagrangian framework, we derive and discuss a hierarchy of static non-linear micropolar shell models in which the thickness can stretch, and the independence of the micro-rotation on the macro-rotation is not limited to the drilling degree of freedom as in the classical sixparameter theory. If the thickness stretch is considered, unconstrained quaternions allow a singularity-free, non redundant and rational parametrization of the strain measures. Emphasis is placed in the discussion of the differences between curvatures, wryness and director deformation strains.
机译:从受限的三维Cosserat弹性和总拉格朗日框架开始,我们派生并讨论了静态非线性微柱壳模型的层次结构,其中厚度可以伸展,并且微旋转对宏观旋转的独立性是 不仅限于古典六参加者理论中的自由度。 如果考虑厚度伸展,则无约束季型允许无奇差,非冗余和合理的应变措施参数化。 重点讨论曲率,扭曲和导向器变形菌株之间的差异。

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