Effect of starting defect for interlaminar fracture testing of interlayer-toughened fiber reinforced composites

D. Stevanovic; S. Kalyanasundaram; A. Lowe; P. Y.B. Jar

doi:10.1023/A:1010921401364

Effect of starting defect for interlaminar fracture testing of interlayer-toughened fiber reinforced composites

D. Stevanovic^*, S. Kalyanasundaram, A. Lowe, P. Y.B. Jar

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The pre-crack conditions used for fracture toughness tests of interlayer-toughened composites under mode I and mode II loading were studied. The results suggest that under mode I loading, fatigue pre-cracking produces lower toughness than insert film for initial crack growth, but not the toughness during crack propagation. It was also found that fiber bridging did not occur at the crack tip. Furthermore, it was observed that mode II fracture behavior of the interlayer-toughened composite is very different from that without the interlayer toughening.

Original language	English
Pages (from-to)	629-632
Number of pages	4
Journal	Journal of Materials Science Letters
Volume	20
Issue number	7
DOIs	https://doi.org/10.1023/A:1010921401364
Publication status	Published - 1 Apr 2001

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abstract = "The pre-crack conditions used for fracture toughness tests of interlayer-toughened composites under mode I and mode II loading were studied. The results suggest that under mode I loading, fatigue pre-cracking produces lower toughness than insert film for initial crack growth, but not the toughness during crack propagation. It was also found that fiber bridging did not occur at the crack tip. Furthermore, it was observed that mode II fracture behavior of the interlayer-toughened composite is very different from that without the interlayer toughening.",

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AB - The pre-crack conditions used for fracture toughness tests of interlayer-toughened composites under mode I and mode II loading were studied. The results suggest that under mode I loading, fatigue pre-cracking produces lower toughness than insert film for initial crack growth, but not the toughness during crack propagation. It was also found that fiber bridging did not occur at the crack tip. Furthermore, it was observed that mode II fracture behavior of the interlayer-toughened composite is very different from that without the interlayer toughening.

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Effect of starting defect for interlaminar fracture testing of interlayer-toughened fiber reinforced composites

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