Reliability Analysis of Composite Laminated Plate with a Hole Subject to In-Plane Load

This study is concerned with the reliability analysis of the composite plate with a hole. The reliability is evaluated by modeling the plate as a series system consisting of each ply failure based on a first ply failure criterion. The mode reliability is obtained by the first order reliability metho...

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Bibliographic Details
Published inTransactions of the Japan Society of Mechanical Engineers Series A Vol. 65; no. 640; pp. 2424 - 2431
Main Authors MUROTSU, Yoshisada, KOGISO, Nozomu, NAKAMURA, Masafumi
Format Journal Article
LanguageJapanese
Published The Japan Society of Mechanical Engineers 25.12.1999
Subjects
Composite Material
Finite Element Method
First Order Reliability Method
First Ply Failure
Laminated Construction
Monte Carlo Simulation
Optimal Design
Stress Concentration
Structural Reliability
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ISSN0387-5008
1884-8338
DOI10.1299/kikaia.65.2424

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Summary:This study is concerned with the reliability analysis of the composite plate with a hole. The reliability is evaluated by modeling the plate as a series system consisting of each ply failure based on a first ply failure criterion. The mode reliability is obtained by the first order reliability method. where material strengths and applied loads are treated as random variables. The reliability is evaluated at the most critical point of each ply. The strength distribution is evaluated by the finite element analysis by adopting Tsai-Wu criterion. The system reliability is approximated by Ditlevsen's bounds. Through numerical calculations, the effect of variations of the random variables is discussed. Then, the reliability-based design is compared with the deterministic strength maximization design. Finally, it is shown that reliability is an important measure for structural safety.
ISSN:0387-5008
1884-8338
DOI:10.1299/kikaia.65.2424