Specimen for cyclic delamination crack growth rates from ply-drops

39th Risø International Symposium on Materials Science 'Fatigue of Composite Materials: Microstructure, Mechanics and Methods'

Goutianos, Stergios^1 ; Sørensen Bent, F.^1

Department of Wind Energy, Section of Composite Mechanics and Structures, Technical University of Denmark, Risø Campus, Roskilde

DK-4000, Denmark^1

关键词: Constant rate;    Cyclic growth;    Delamination crack;    Fatigue delamination;    Stable crack growth;    Test specimens;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/388/1/012010/pdf
DOI  :  10.1088/1757-899X/388/1/012010

来源: IOP

【 摘 要 】

The cyclic growth rate of delaminations initiated from ply-drops under tensile cyclic load was experimentally measured using a test specimen geometry, with internal ply-drops, that allows stable crack growth. It is found that the fatigue delaminations grow at a constant rate.