Influence of fibre volume fraction on the mode I interlaminar fracture toughness of a glass-fibre/vinyl ester composite

P. Compston; P. Y.B. Jar

doi:10.1023/A:1008973211347

Influence of fibre volume fraction on the mode I interlaminar fracture toughness of a glass-fibre/vinyl ester composite

P. Compston^*, P. Y.B. Jar

^*Corresponding author for this work

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

35 Citations (Scopus)

Abstract

This paper investigates the influence of fibre volume fraction on the mode I interlaminar fracture toughness G_Ic of a glass-fibre/vinyl ester composite. Two fibre volume fraction parameters are defined; a global value for the composite specimen and a value for the fibre-dense intralaminar regions. The range of global fibre volume fraction studied was 32-52%. Results show that G_Ic values for crack initiation are independent of fibre volume fraction and similar to matrix resin G_Ic. Variations in the G_Ic for steady-state crack propagation, and the amount of fibre bridging, are not completely explained by changes in global fibre volume fraction. Instead they are consistent with fibre volume fraction in the fibre-dense intralaminar regions, through which the crack preferred to grow. It is concluded that this latter parameter is more relevant for G_Ic characterization as a function of fibre volume fraction.

Original language	English
Pages (from-to)	353-368
Number of pages	16
Journal	Applied Composite Materials
Volume	6
Issue number	6
DOIs	https://doi.org/10.1023/A:1008973211347
Publication status	Published - Nov 1999

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title = "Influence of fibre volume fraction on the mode I interlaminar fracture toughness of a glass-fibre/vinyl ester composite",

abstract = "This paper investigates the influence of fibre volume fraction on the mode I interlaminar fracture toughness GIc of a glass-fibre/vinyl ester composite. Two fibre volume fraction parameters are defined; a global value for the composite specimen and a value for the fibre-dense intralaminar regions. The range of global fibre volume fraction studied was 32-52%. Results show that GIc values for crack initiation are independent of fibre volume fraction and similar to matrix resin GIc. Variations in the GIc for steady-state crack propagation, and the amount of fibre bridging, are not completely explained by changes in global fibre volume fraction. Instead they are consistent with fibre volume fraction in the fibre-dense intralaminar regions, through which the crack preferred to grow. It is concluded that this latter parameter is more relevant for GIc characterization as a function of fibre volume fraction.",

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N2 - This paper investigates the influence of fibre volume fraction on the mode I interlaminar fracture toughness GIc of a glass-fibre/vinyl ester composite. Two fibre volume fraction parameters are defined; a global value for the composite specimen and a value for the fibre-dense intralaminar regions. The range of global fibre volume fraction studied was 32-52%. Results show that GIc values for crack initiation are independent of fibre volume fraction and similar to matrix resin GIc. Variations in the GIc for steady-state crack propagation, and the amount of fibre bridging, are not completely explained by changes in global fibre volume fraction. Instead they are consistent with fibre volume fraction in the fibre-dense intralaminar regions, through which the crack preferred to grow. It is concluded that this latter parameter is more relevant for GIc characterization as a function of fibre volume fraction.

AB - This paper investigates the influence of fibre volume fraction on the mode I interlaminar fracture toughness GIc of a glass-fibre/vinyl ester composite. Two fibre volume fraction parameters are defined; a global value for the composite specimen and a value for the fibre-dense intralaminar regions. The range of global fibre volume fraction studied was 32-52%. Results show that GIc values for crack initiation are independent of fibre volume fraction and similar to matrix resin GIc. Variations in the GIc for steady-state crack propagation, and the amount of fibre bridging, are not completely explained by changes in global fibre volume fraction. Instead they are consistent with fibre volume fraction in the fibre-dense intralaminar regions, through which the crack preferred to grow. It is concluded that this latter parameter is more relevant for GIc characterization as a function of fibre volume fraction.

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Influence of fibre volume fraction on the mode I interlaminar fracture toughness of a glass-fibre/vinyl ester composite

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