Dynamic delamination in a glass fiber composite and interfacial fracture in a bi-material

Chul Jin Syn, Purdue University

Abstract

Dynamic delamination experiments were performed on the specimens made of unidirectional glass fiber composites in Mode I and Mode II. Crack propagation history was analyzed using a high speed camera synchronized with electrical circuit device. The results showed that the dynamic fracture toughness was increased with increasing loading rate in Mode I and Mode II fracture experiments. The loading rate and surface topography effects on energy dissipation during dynamic fracture of an aluminum/epoxy interface were also experimentally investigated. The results indicated that surface morphology significantly affect the energy dissipation during the dynamic fracture of the interface.

Degree

Ph.D.

Advisors

Chen, Purdue University.

Subject Area

Aerospace engineering

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