Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/27713
Title: Progressive failure analysis of 2/2 twill weave fabric composites with moulded-in circular hole
Authors: Ng, SP
Tse, PC
Lau, KJ
Issue Date: 2001
Publisher: Pergamon Press
Source: Composites. Part B, Engineering, 2001, v. 32, no. 2, p. 139-152 How to cite?
Journal: Composites. Part B, Engineering 
Abstract: Micromechanical three-dimensional finite element models of 2/2 twill weave T300 carbon/epoxy woven fabric composite panels with moulded-in circular hole are established for stress analysis. In these models, the streamline equation is used as a shape function to simulate the fibre configuration. A progressive failure analysis together with a newly developed `maximum notched strength method' are also proposed to predict the failure modes and notched strengths of the fibre dominated laminate with moulded-in hole. Perforated specimens of different hole sizes are prepared using a special procedure. Tension tests are performed to evaluate the stress-strain and failure characteristics. An increase in tensile strength with increasing hole size is observed within the experimental data range. Numerical results from progressive failure analysis provide good prediction to the failure phenomena of the fractured specimens. The notched strengths from the proposed numerical procedure are slightly higher than the experimental results.
URI: http://hdl.handle.net/10397/27713
ISSN: 1359-8368
EISSN: 1879-1069
DOI: 10.1016/S1359-8368(00)00040-8
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