A simplified layered beam approach for predicting ply drop delamination in thick composite laminates
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- 作者：Khong Wui Gana ; K.W.Gan@soton.ac.uk" class="auth_mail" title="E-mail the corresponding author ; Giuliano Allegrib ; Stephen R. Hallettc
- 关键词：Composite laminate ; Ply drop-off ; Delamination ; Numerical analysis
- 刊名：Materials & Design
- 出版年：2016
- 出版时间：15 October 2016
- 年：2016
- 卷：108
- 期：Complete
- 页码：570-580
- 全文大小：1706 K
文摘
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A novel global-local approach is proposed to predict ply-drop delamination in thick tapered composites.
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The ply-drop is represented locally by an assembly of Timoshenko beams with loading obtained from a global FE model.
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The relative accuracy given by the approach can be used to efficiently rank delamination hazards of multiple ply-drops.
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Its applicability to thick tapered composite specimens is demonstrated.