Delamination fracture in composite materials

Bent F. Sørensen*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingBook chapterEducationpeer-review


Delamination, that is, crack growth between different plies, is a common failure mode in laminated composites. Analysis, testing, and designing against delamination crack growth is discussed in the present chapter. In comparison with crack growth in isotropic metals, delamination of composites is complicated by elastic orthotropy, mixed mode interface crack growth, and large-scale bridging. This sets special focus on the use of dedicated fracture mechanics testing specimens and theory to characterize delamination. J integral specimens are preferred for the determination of bridging laws (traction-separation laws) to describe large-scale bridging. Furthermore, micromechanical models describing toughening due to crack bridging are briefly reviewed.
Original languageEnglish
Title of host publicationModeling Damage, Fatigue and Failure of Composite Materials
EditorsRamesh Talreja, Janis Varna
Publication date2024
ISBN (Electronic)978-0-443-18489-5
Publication statusPublished - 2024
SeriesWoodhead Publishing Series in Composites Science and Engineering


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