Using a cohesive damage model to predict the tensile behaviour of CFRP single-strap repairs

By R. Campilho, M. D. De Moura, J. Domingues. 2008

240 citations recorded by the source corpus.

This work addresses both experimental and numerical analyses regarding the tensile behaviour of CFRP single-strap repairs. Two fundamental geometrical parameters were studied: overlap length and patch thickness. The numerical model used ABAQUS® software and a developed cohesive mixed-mode damage model adequate for ductile adhesives, and implemented within interface finite elements. Stress analyses and strength predictions were carried out. Experimental and numerical comparisons were performed on failure modes, failure load and equivalent stiffness of the repair. Good correlation was found between experimental and numerical results, showing that the proposed model can be successfully applied to bonded joints or repairs.

Subfields: Building and Construction, Mechanics of Materials

View Paper: https://www.semanticscholar.org/paper/cc6014489dac44468e1fd9653bbc86f3776eba40

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In Building and Construction

In Mechanics of Materials

Citations in the corpus

Modelling adhesive joints with cohesive zone models: effect of the cohesive law shape of the adhesive layer (2013, methodology): “A suitable approximation for thin adhesive where a is a non-dimensional parameter, related to a specific material, that establishes the rate of damage evolution with dn,s layers is provided with Knn 1⁄4 E, Kss 1⁄4 G, Kns 1⁄4 0 [21,40].”
Modelling the tensile fracture behaviour of CFRP scarf repairs (2009, background): “Even though the presented numerical methodologies have a significant usefulness in predicting the failure loads and identify damage onset locations, they cannot account for the progressive damage evolution and identify failure paths as cohesive zone models (CZM) are able [17–23].”
Pure mode II fracture characterization of composite bonded joints (2009, methodology): “A detailed description of the proposed model is presented in the work of Campilho et al. (2008).”
Parametric study of adhesive joints with composites (2012, unknown): “Tables 4 and 5 show the values introduced in ABAQUS for the adhesive layer damage laws [13,15].”