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A simple specimen method for measuring the fracture surface energy of rubber materials

type de publication      article dans une revue internationale avec comité de lecture
date de publication 2001
auteur(s) Aït Hocine N.; Naït Abdelaziz Moussa
journal (abréviation) Engineering transactions (Engng Trans.)
volume (numéro) 49 (1)
  
pages 29 – 45
résumé In this investigation, particular attention is paid to the generalized theory of fracture mechanics developed by Andrews and based on the spatial strain energy density distribution W in the case of an infinite lamina. A numerical analysis using a finite element method brings out some serious shortcomings in the fundamental equation of this theory when dealing with laboratory specimens of finite dimensions. It is proven that the J integral derived from this equation has no physical meaning. We have proposed an alternative expression of W which leads to a simplified J integral requiring measurements on one specimen only.
mots clés fracture, rubber J integral, nonlinearity, finite element
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