Fracture in the Single Cantilever Beam Test with Large Scale Bridging

Abstract:

A single cantilever beam test was performed on joints constituted from unidirectional carbon fiber composite flexible beam bonded to a rigid polyamide/aluminium block. The loading was following a constant separation rate rule, for which steady-state fracture energy can be obtained. In addition to the standard resistance curve we have investigated, using backface strain monitoring technique, fiber bridging effect on load distribution in the vicinity of the crack front. A big impact of the fiber bridging on the overall R-curve behaviour was confirmed with local non self-consistency of the crack propagation. The results are backed up analytically.

• Periodical: Key Engineering Materials (Volume 627)
• Pages: 221-224
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.627.221
• Online since: September 2014
• Authors: Michal K. Budzik*, Henrik M. Jensen, Julien Jumel
• Keywords: Composite, Delamination, Interface Fracture

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