Mechanical behaviour of composite Cosserat solids in elastic problems with holes and discontinuities

被引：16

作者：

Tornabene, Francesco ^{[1
]}

Fantuzzi, Nicholas ^{[1
]}

Bacciocchi, Michele ^{[1
]}

机构：

[1] Univ Bologna, Sch Engn & Architecture, DICAM Dept, Bologna, Italy

来源：

COMPOSITE STRUCTURES | 2017年 / 179卷

关键词：

Cosserat theory; Micropolar elasticity; Solids with discontinuities; Pseudo-spectral method; Domain decomposition; FINITE-ELEMENT-METHOD; DIFFERENTIAL QUADRATURE METHOD; HIGHER-ORDER THEORIES; FORMULATION ISOGEOMETRIC ANALYSIS; FREE-VIBRATION ANALYSIS; LOCAL GDQ METHOD; MICROPOLAR ELASTICITY; MATERIAL CONSTANTS; MASONRY; SHELLS;

D O I：

10.1016/j.compstruct.2017.07.087

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Cosserat theory of elasticity has been introduced for modelling micro-structured materials and structures. Micro-structured materials are able to re-distribute the stress resulting in lower stress peaks. Therefore, such effects are strongly underlined when composite structures have holes and discontinuities in which high stress gradients are generally observed in the classical theory of elasticity. However, general material configurations can be solved using numerical approaches, since exact solutions are only available for simple cases. The present paper deals with such problems using an advanced strong form pseudo-spectral method that uses domain decomposition to deal with geometric and material discontinuities. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：468 / 481

页数：14

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