Splitting tests : an alternative to determine the dynamic tensile strength of ceramic materials

J. Rodríguez , C. Navarro , V. Sánchez-Gálvez

In this work, the possibilities of splitting tests (Brazilian tests) to determine the mechanical properties of ceramic materials at high strain rates are analyzed. The study is based on the mechanical characterization of cylindrical specimens in the Hopkinson bar and the use of a high speed camera to observe the failure pattern. Additionally, a numerical simulation of the tests has been carried out using the finite element method. Results show that Brazilian tests can be an alternative to determine the dynamic properties of brittle materials when the elastic behaviour and the equilibrium state are ensured, and the failure is produced in the expected way.

Domaines: Articles anciens

J. Rodríguez, C. Navarro, V. Sánchez-Gálvez. Splitting tests : an alternative to determine the dynamic tensile strength of ceramic materials. Journal de Physique IV Proceedings, 1994, 04 (C8), pp.C8-101-C8-106. ⟨10.1051/jp4:1994815⟩. ⟨jpa-00253370⟩