Open Access

ABSTRACT

Computational Modeling of Cracked Plates Repaired with Adhesively Bonded Composite Patches Using the Boundary Element Method

by J. Useche¹, P. Sollero², E.L. Albuquerque², L. Palermo³

1 Faculty of Engineering, Technological University, Cartagena, Colombia
2 Faculty of Mechanical Enginnering, State University of Campinas, Brasil
3 Faculty of Civil Engineering, State University of Campinas, Brasil

The International Conference on Computational & Experimental Engineering and Sciences 2008, 6(3), 175-182. https://doi.org/10.3970/icces.2008.006.175

Abstract

The computational fracture analysis of cracked thick plates repaired with adhesively bonded composite patches using a boundary element formulation is presented. The shear deformable cracked isotropic plate was modeled using the Reissner's plate theory. In order to model the repair, a three parameter boundary element formulation, based on Kirchhoff's theory for symmetric layered composite plates was established. Interaction forces and moments between the cracked plate and the composite repair were modeled as distributed loads. Coupling equations, based on kinematic compatibility and equilibrium considerations for the adhesive layer, were established. In-plane shear-deformable model with transversal stiffness was considered in order to modeling de mechanical response of the adhesive. Stress intensity factors are evaluated from crack opening displacements. A problem considering circular composite repair is presented and results compared with those presented in the literature.

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