Mode I fracture toughness of co-cured and secondary bonded composite joints
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|Title:||Mode I fracture toughness of co-cured and secondary bonded composite joints||Authors:||Mohan, Joseph
|Permanent link:||http://hdl.handle.net/10197/5909||Date:||Jun-2014||Abstract:||The mode I fracture toughness of a single co-cured and two secondary bonded joint systems were determined using the double cantilever beam test. The initiation values of fracture toughness from the PTFE film insert and a mode I crack-tip were considered as well as propagation values. It was found that the starting defect had a large influence on the initiation values for fracture toughness. It was also found that the two secondary bonded systems predominantly resulted in cohesive failure while the co-cured joiailed interfacially. Thermogravimetric analysis coupled with mass-spectrometry was used to show how moisture in the composite prepreg and adhesive affected the toughness of the joints. Microscopy methods were used to gain further insight into the damage mechanisms of the three joint systems.||Type of material:||Journal Article||Publisher:||Elsevier||Journal:||International Journal of Adhesion and Adhesives||Volume:||51||Start page:||13||End page:||22||Copyright (published version):||2014 Elsevier||Keywords:||Epoxy/epoxides; Composites; Adhesive joints; Fracture mechanics; Microscopy||DOI:||10.1016/j.ijadhadh.2014.02.008||Language:||en||Status of Item:||Peer reviewed|
|Appears in Collections:||Mechanical & Materials Engineering Research Collection|
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