Physics – Condensed Matter – Materials Science
Scientific paper
2009-03-30
Physics
Condensed Matter
Materials Science
Accepted for publication in the International Journal of Fracture
Scientific paper
The opening profile of the cracks produced in the Double Cleavage Drilled Compression (DCDC) specimens for brittle materials is investigated. The study is achieved by combining Finite Element simulations of a DCDC linear elastic medium with experimental measurements by crack opening interferometry on pure silica glass samples. We show that the shape of the crack can be described by a simple expression as a function of the geometrical parameters of the sample and the external loading conditions. This result can be used to measure accurately in real time relevant quantities during DCDC experiments, such as the crack length or the stress intensity factor applied to the specimen.
Ciccotti Matteo
George Matthieu
Grimaldi Antoine
Pallares Gael
Ponson Laurent
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