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Title: Experimental study of the interlaminar fracture of composite materials in mode III by MSCB test
Authors: Tawk, Issam 
Rishmany, Jihad 
Saba, Nicolas 
Navarro, Pablo
Ferrero, Jean-Francois
Affiliations: Department of Mechanical Engineering 
Department of Mechanical Engineering 
Department of Mechanical Engineering 
Keywords: Mode III
Energy release rate
Crack propagation
MSCB test
Subjects: Composite materials
Issue Date: 2020
Part of: Journal of composite structures
Volume: 233
Start page: 1
End page: 10
This paper focuses on the study of interlaminar fracture of composite materials in mode III using the Modified Split Cantilever Beam (MSCB) test. MSCB test is applied to investigate the dependency of the mode III energy release rate on geometric parameters (specimen width, and thickness), initial crack length, loading condition and crack front material layup. A non perforated release film is introduced to create delamination at the mid-plane of the tested specimens. Three sets of samples (a total of 56 samples) are fabricated and tested from Unidirectional Glass fibers. The length of the specimens is 154 mm. The first set of tests is conducted for three different widths (35 mm, 20 mm, 12 mm) to select the most appropriate width that leads to a crack initiation prior to specimen failure. The remaining sets of tests are conducted with different loading conditions, different thickness, different initial crack length, and different lay up orientations at the crack front (0/0, +45/−45, 0/45, and 0/90). Results show that both width selection and load configuration are of extreme importance for the success of the test. The energy release rate (GIIIc) increases with increasing thickness and width. The stacking orientation at the crack front shows minor influence on GIIIc.
DOI: 10.1016/j.compstruct.2019.111548
Ezproxy URL: Link to full text
Type: Journal Article
Appears in Collections:Department of Mechanical Engineering

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