Cohesive zone models and the plastically deforming peel test
2003; Taylor & Francis; Volume: 79; Issue: 3 Linguagem: Inglês
10.1080/00218460309555
ISSN1563-518X
AutoresIoannis T. Georgiou, H. Hadavinia, Alojz Ivanković, A. J. Kinloch, Vlado Tropša, J. G. Williams,
Tópico(s)Textile materials and evaluations
ResumoThe peel test is a popular test method for measuring the peeling energy between flexible laminates. However, when plastic deformation occurs in the peel arm(s) the determination of the true adhesive fracture energy, G c , from the measured peel load is far from straightforward. Two different methods of approaching this problem have been reported in recently published papers, namely: (a) a simple linear-elastic stiffness approach, and (b) a critical, limiting maximum stress, σ max , approach. In the present article, these approaches will be explored and contrasted. Our aims include trying to identify the physical meaning, if any, of the parameter σ max and deciding which is the better approach for defining fracture when suitable definitive experiments are undertaken. Cohesive zone models Fracture mechanics Laminates Peel tests Plastic deformation
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