Evaluation of <i>G</i><sup>IC</sup> of a DCB Specimen Using an Anisotropic Solution

Volume 10, Issue 4 (December 1988)

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ISSN: 0884-6804
CODEN: JCTRER
Page Count: 5

Evaluation of G^IC of a DCB Specimen Using an Anisotropic Solution
Reifsnider, KL

El-Zein, MS
Graduate student and Reynolds Metals professor of engineering science and mechanics, Virginia Polytechnic Institute and State University, VA

Abstract

An equation for the strain energy release rate G¹ of a double cantilever beam (DCB) specimen for an anisotropic material is obtained. Results show that for an orthotropic material, the solution coincides with the isotropic one. However, for a more general anisotropic case, an additional term appears, which is a function of the crack length, the material anisotropy, and the thickness of the cantilever beam. Interpretations of these results show that the additional term is fairly small and could be neglected for crack length to thickness ratios greater than 4.

Keywords:
double cantilever beam specimen, anisotropic solution, delamination, strain energy release rate

Paper ID: CTR10278J
DOI: 10.1520/CTR10278J
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Author Title Evaluation of G^IC of a DCB Specimen Using an Anisotropic Solution Symposium , 0000-00-00 Committee D30

		SEDL / Journal of Composites Technology and Research (JCTR) / Citation Page Volume 10, Issue 4 (December 1988) Click here to download this paper now for $25 PDF (144K) View License Agreement ISSN: 0884-6804 CODEN: JCTRER Page Count: 5 Evaluation of G^IC of a DCB Specimen Using an Anisotropic Solution Reifsnider, KL El-Zein, MS Graduate student and Reynolds Metals professor of engineering science and mechanics, Virginia Polytechnic Institute and State University, VA Abstract An equation for the strain energy release rate G¹ of a double cantilever beam (DCB) specimen for an anisotropic material is obtained. Results show that for an orthotropic material, the solution coincides with the isotropic one. However, for a more general anisotropic case, an additional term appears, which is a function of the crack length, the material anisotropy, and the thickness of the cantilever beam. Interpretations of these results show that the additional term is fairly small and could be neglected for crack length to thickness ratios greater than 4. Keywords: double cantilever beam specimen, anisotropic solution, delamination, strain energy release rate Paper ID: CTR10278J DOI: 10.1520/CTR10278J ASTM International is a member of CrossRef. Author Title Evaluation of G^IC of a DCB Specimen Using an Anisotropic Solution Symposium , 0000-00-00 Committee D30