Effect of Fibre Orientation on Mode-I13; Interlaminar Fracture Toughness of Glass13; Epoxy Composites

Shetty, MR and Vijay Kumar, KR and Sudhir, S and Raghu, P and Madhuranath, D and Rao, RMVGK (1999) Effect of Fibre Orientation on Mode-I13; Interlaminar Fracture Toughness of Glass13; Epoxy Composites. Journal of Reinforced Plastics and Composites, 16 . pp. 1-15. ISSN 0731-6844

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    Abstract

    The mode-I interlaminar fracture toughness (IFf) property of room temperature13; (RT) cured glass-epoxy (LY556/HY95I ) composites was studied using a double cantilever13; beam (DCB) test specimen with unidirectional fiber orientations of 0xB0;, +45xB0;/-45xB0;,13; +60xB0;/-60xB0; and 90xB0; in the neighborhood of the crack zone. Three 1FT data reduction techniques.13; viz.: (l) Modified Beam Theory (MBT). (2) Compliance Calibration Theory (CC)13; and (3) Modified Compliance Calibration Theory (MCC) were verified for the DCB data13; generated for 0xB0; fiber oriented specimens. The fracture toughness property estimates were13; noted to be approximately the same for all three techniques. Only the MBT reduction procedure13; (as per ASTM) was used for other orientations. It was observed that the IFT increased as13; the fiber orientation was changed from 0xB0; to 90xB0; with reference to the direction of crack propagation.13;

    Item Type: Journal Article
    Uncontrolled Keywords: Mode-l interlaminar fracture toughness;double cantilever beam;13; delamination fibre orientation.
    Subjects: CHEMISTRY AND MATERIALS > Composite Materials
    Division/Department: Other, Other, Other, Other, Other, Fibre Reinforced Plastics Division
    Depositing User: Mrs Manoranjitha M D
    Date Deposited: 22 Mar 2006
    Last Modified: 24 May 2010 09:40
    URI: http://nal-ir.nal.res.in/id/eprint/1126

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