Stress and failure analysis of laminated composites based on layerwise B-spline finite strip method |
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Authors: | Xiuqin Zhang Simon Wang Yingshun Zhang |
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Affiliation: | 1. Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, Shanxi, China;2. Department of Aeronautical and Automotive Engineering, Loughborough University, Loughborough LE11 3TU, UK;3. Doosan Babcock Energy Limited, Porterfield Road, Renfrew PA4 8DJ, UK |
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Abstract: | A layerwise Bk,k−1-spline finite strip method is developed for stress and failure analysis in fibre reinforced composite laminates. The composite laminates are divided into a number of numerical layers in the thickness direction. A linear variation of in-plane displacements are assumed across the thickness of each numerical layer to represent the sectional warping which can have significant effects on through thickness shear stresses. The development of Bk,k−1-spline finite strip method is presented. Material failure criteria and material degradation models for progressive failure are discussed and integrated in a progressive failure analysis for composite laminates. Numerical applications include a progressive failure analysis example are presented to verify the layerwise B-spline finite strip method developed for stress and failure analysis in composite laminates. Whenever possible the present predictions are compared with the existing analytical and numerical results. |
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Keywords: | B-spline finite strip method Composite laminates Layer-wise plate theory Stresses Failure |
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