Affiliation:
1. University of Calabria
2. University of Illinois at Urbana-Champaign
Abstract
This paper deals with the application of Cohesive Zone Model (CZM) concepts to study mode I
fracture in adhesive bonded joints. In particular, an intrinsic piece-wise linear cohesive surface
relation is used in order to model fracture in a pre-cracked bonded Double Cantilever Beam (DCB)
specimen. Finite element implementation of the CZM is accomplished by means of the user element
(UEL) feature available in the FE commercial code ABAQUS. The sensitivity of the cohesive zone
parameters (i.e. fracture strength and critical energy release rate) in predicting the overall
mechanical response is first examined; subsequently, cohesive parameters are tuned comparing
numerical simulations of the load-displacement curve with experimental results retrieved from
literature.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
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