Evaluation of buckling and first-ply failure probabilities of composite laminates

S. C. Lin, Tai-Yan Kam*, K. H. Chu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


A procedure for failure probability evaluation of composite laminates subjected to in-plane loads is proposed. The material properties, fiber angles and layer thicknesses of the laminates are treated as random variables in the reliability analysis. The statistics of first-ply failure loads and buckling strengths of the laminates are determined via the stochastic finite element method. The failure probabilities of the laminates which are susceptible to buckling and first-ply failure are computed using the statistics obtained in the stochastic finite element analysis. The feasibility and accuracy of the present approach are validated using the results obtained via the Monte-Carlo method. A number of examples of reliability analysis of composite laminates subject to in-plane loads are given to illustrate the applications of the procedure.

Original languageEnglish
Pages (from-to)1395-1410
Number of pages16
JournalInternational Journal of Solids and Structures
Issue number13
StatePublished - 1 Jan 1998

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