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论文类型：期刊论文

发表时间：2018-01-01

发表刊物：MECHANICS OF ADVANCED MATERIALS AND STRUCTURES

收录刊物：SCIE

卷号：25

期号：11

页面范围：901-916

ISSN号：1537-6494

关键字：Composite grid-stiffened structures; delamination deficiencies; finite element method (FEM); cohesive element; delamination growth; compression properties

摘要：This article provides a systematic approach to accurately predict the effects of delamination deficiencies on compressive properties of composite grid-stiffened structures. The deformation of the stiffener and the skin is investigated during a mechanical test. Cohesive elements in the finite element method were employed to calculate the ultimate load-carrying capacity. The delamination deficiencies in the interface between the skin and the stiffener have a significant effect upon its ultimate load-carrying capability compared with the delamination deficiencies in the skin and in the stiffener.