Journal
COMPOSITE STRUCTURES
Volume 161, Issue -, Pages 32-50Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2016.10.129
Keywords
Zig-Zag effect; Laminated plates and shells; Non-linear analysis
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Without adding new degrees of freedom, this paper presents a new finite element formulation that combines three important ingredients for precise analysis of displacements and transverse stresses in laminated shells and plates, namely: (i) Presence of Zig-Zag effect, (ii) regularization of transverse stresses in order to guaranty their continuity and (iii) cinematically exact description in FEM nonlinear geometric formulation. The accuracy of the proposed formulation in both displacements and stresses will be proven by comparing results with linear elastic benchmarks of literature. Furthermore, the possibilities of the formulation are shown by solving an extreme geometric nonlinear problem of orthotropic laminated shells, considering results in displacements and stresses. (C) 2016 Elsevier Ltd. All rights reserved.
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