Effect of maximum load on cyclic crack growth in UD E-glass/vinyl ester composites with constant and alternating stitch density

Ruben I. Erives Anchondo*, Stergios Goutianos

*Corresponding author for this work

Research output: Contribution to journalConference articleResearchpeer-review

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Abstract

DCB specimens, manufactured from composites with constant and alternating stitching density, are tested under pure mode I for static and cyclic loading. The tests are carried out for different maximum load values, but keeping the same R-ratio. The crack growth is recorded from pictures at different cycle intervals, and the energy release rate (ERR) is computed using an approach based on the J-Integral. Along with the crack-tip, the length of the fracture process zone (FPZ) is recorded with the number of cycles. A curve relating the crack growth rate (CGR) and the cyclic fracture resistance, ΔJ, which can be directly applied in the design/repair process of composite structures, is derived.
Original languageEnglish
Article number012041
JournalIOP Conference Series: Materials Science and Engineering
Volume942
Issue number1
Number of pages9
ISSN1757-8981
DOIs
Publication statusPublished - 2020
Event41st Risø International Symposium on Materials Science - Online event, Denmark
Duration: 7 Sep 202010 Sep 2020

Conference

Conference41st Risø International Symposium on Materials Science
CountryDenmark
CityOnline event
Period07/09/202010/09/2020

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