The effects of delamination deficiencies on compressive properties of composite grid-stiffened structures. Issue 11 (18th August 2018)

• Record Type: Journal Article
• Authors: Mo, Yihua; Cheng, Gengdong; Wang, Bing; Wang, Xiaohong
• Is Part Of: Mechanics of advanced materials and structures. Volume 25:Issue 11(2018)
• Page Start: 901
• Page End: 916
• Publication Date: 2018-08-18
• Subjects: Composite grid-stiffened structures -- delamination deficiencies -- finite element method (FEM) -- cohesive element -- delamination growth -- compression properties; Composite materials -- Mechanical properties -- Periodicals; Composite construction -- Periodicals; 620.118
• DOI: 10.1080/15376494.2017.1310337
• Languages: English
• ISSNs: 1537-6494

Abstract

ABSTRACT: 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.