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A higher order control volume based finite element method to prodict the deformation of heterogeneous materials

Beveridge, Andrew James and Wheel, Marcus and Nash, David (2013) A higher order control volume based finite element method to prodict the deformation of heterogeneous materials. Computers and Structures, 129. pp. 54-62. ISSN 0045-7949

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    Materials with obvious internal structure can exhibit behaviour, under loading, that cannot be described by classical elasticity. It is therefore important to develop computational tools incorporating appropriate constitutive theories that can capture their unconventional behaviour. One such theory is micropolar elasticity. This paper presents a linear strain control volume finite element formulation incorporating micropolar elasticity. Verification results from a micropolar element patch test as well as convergence results for a stress concentration problem are included. The element will be shown to pass the patch test and also exhibit accuracy that is at least equivalent to its finite element counterpart.