Cohesive Zone Modeling of Mode I Fracture in Adhesive Bonded Joints |
| Journal |
Key Engineering Materials (Volumes 348 - 349) |
| Volume |
Advances in Fracture and Damage Mechanics VI |
| Edited by |
J. Alfaiate, M.H. Aliabadi, M. Guagliano and L. Susmel |
| Pages |
13-16 |
| DOI |
10.4028/www.scientific.net/KEM.348-349.13 |
| Online since |
September, 2007 |
| Authors |
Marco Alfano,
Franco Furgiuele,
A. Leonardi,
Carmine Maletta,
Glaucio H. Paulino
|
| Keywords |
Adhesive Joint, Cohesive Zone Model, Mode I Fracture, Nonlinear Fracture |
| 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. |
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