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Published March 2009 | public
Journal Article

Crack opening profile in DCDC specimen

Abstract

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.

Additional Information

© 2009 Springer. Received: 25 August 2008. Accepted: 25 March 2009. Published online: 18 April 2009. We wish to thank C. Marlière and F. Célarié for initial developments of the fracture experiment and C. Blanc for his help in the setup of the interferometric technique. We thank S. Roux and T. Fett for stimulating discussions. This work was supported by the ANR grant CORCOSIL (BLAN07-3-196000).

Additional details

Created:
August 21, 2023
Modified:
October 19, 2023