Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/85270
Author(s): M. F. S. F. de Moura
Filipe J. P. Chaves
L. F. M. da Silva
D. A. Dillard
Title: Mixed-Mode I + II fracture characterization of bonded joints using a novel Multi-Mode Apparatus
Issue Date: 2014-02-06
Abstract: The present work presents the experimental test results to assess the toughness of an adhesive joint, using a previouslydefined crack equivalent data reduction scheme applied to a new multi-mode apparatus, inspired in a load jig previouslydeveloped by Fernlund and Spelt. The patented jig allows for easy alteration of the mode-mixity and permits coveringthe full range of mixed-mode I+II combinations. A data reduction scheme based on specimen compliance, beam theoryand crack equivalent concept is used to overcome several difficulties inherent to the test analysis. The method assumesthat the performed test can be viewed as a combination of the double cantilever beam and asymmetrically loaded endnotchedflexure tests, which provide modes I and II fracture characterization, respectively. A numerical analysisincluding a cohesive mixed-mode I+II damage model was performed considering different mixed-mode loadingconditions to validate the proposed data reduction scheme. Issues regarding self-similar crack growth and fractureprocess zone development are discussed. It was verified that the considered in-plane mix mode fracture criterion is wellcaptured using the proposed data reduction scheme.
URI: https://repositorio-aberto.up.pt/handle/10216/85270
Source: XIV Portuguese Conference on Fracture
Document Type: Artigo em Livro de Atas de Conferência Nacional
Rights: openAccess
License: https://creativecommons.org/licenses/by-nc/4.0/
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Nacional

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