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International Journal of Fracture

, Volume 52, Issue 1, pp 67–77 | Cite as

Analysis of interleaved end-notched flexure specimen for measuring mode II fracture toughness

  • L. A. Carlsson
  • A. Aksoy
Article

Abstract

Compliance and strain energy release rate of homogeneous and interleaved end-notched flexure specimens for mode II fracture characterization are investigated with shear deformation beam theory and finite element analysis. Interleaving refers to a thin layer of polymer film being placed at the midplane of the beam. Analytical results are correlated with numerical finite element results for a wide range of interleaf thicknesses. The finite element results revealed that the compliance and energy release rate remained virtually the same whether the crack was within the interlayer or between the interlayer and the composite. Furthermore, within the accuracy of the numerical modeling, the asymmetric crack configuration did not render the specimen mixed mode, (GI=0). Close agreement was observed between sandwich beam theory and finite element analysis.

Keywords

Fracture Toughness Finite Element Analysis Polymer Film Energy Release Rate Mixed Mode 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 1991

Authors and Affiliations

  • L. A. Carlsson
    • 1
  • A. Aksoy
    • 1
  1. 1.Department of Mechanical EngineeringFlorida Atlantic UniversityBoca RatonUSA

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