A Symmetric Rail Shear Test for Mode II Fracture Toughness (GIIC) of Composite Materials—Finite Element Analysis

Using a high precision triangular finite element model, the elastic stress field in a symmetric rail shear test specimen is determined. The results are graphically presented and discussed. A simple finite element technique for energy release rate analysis of the pre-cracked test specimen is presente...

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Bibliographic Details
Published in:Journal of composite materials 1984-05, Vol.18 (3), p.227-238
Main Author: Lakshminarayana, H.V.
Format: Article
Language:English
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Summary:Using a high precision triangular finite element model, the elastic stress field in a symmetric rail shear test specimen is determined. The results are graphically presented and discussed. A simple finite element technique for energy release rate analysis of the pre-cracked test specimen is presented. Numerical results showing the effects of material properties and crack length are tabulated as normalized stress-intensity fac tors. Based on this numerical study it is fair to say that the symmetric rail shear test with some modifications is a viable method for shear characterization of composite materials in general and for GIIC determination in particular. Final acceptance of the test method, however, awaits experimental verification.
ISSN:0021-9983
1530-793X
DOI:10.1177/002199838401800303