Buckling Analysis of Rectangular Laminated Composite Plates With An Edge Delamination Under Compressive Load
محل انتشار: مجله علوم و مهندسی هوافضا، دوره: 4، شماره: 1
سال انتشار: 1386
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 85
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شناسه ملی سند علمی:
JR_JASTI-4-1_001
تاریخ نمایه سازی: 3 آبان 1402
چکیده مقاله:
The buckling analysis of rectangular laminated composite plates with an edge delamination under in-plane compressive loading is performed using the finite element method. Such a plate may be considered as a simplified model of stiffener plates of a stiffened panel. The buckling load and buckling mode are obtained by solving an eigenproblem. In an unconstrained analysis, physically inadmissible modes appear because of the overlap between separated sublaminates in the delaminated region. To eliminate overlap, constraints are added iteratively on the entire overlapped area using penalty function method. The validity and superiority of the analysis method in predicting buckling load and buckling mode is shown in comparison with the experimental and analytical results available in the literature. Numerical results show the effect of delamination width and depth and boundary conditions on the buckling load.
نویسندگان
Mohammad Ali Kouchakzadeh
Sharif University of Technology