J. Phys. IV France 110 (2003) 371
Numerical simulation of the dynamic Brazilian test on a high filled polymerM. Quidot
SME-SNPE Matériaux Énergétiques, Centre de Recherches du Bouchet, 91710 Vert-le-Petit, France
The dynamic Brazilian test has been previously developed for the study of dynamic failure properties of brittie materiais such as ceramic or concrete. We have applied this test to a cast PBX that is a high filled polymer containing 88% of crystalline charges and HTBP as binder. The Split Hopkinson Pressure Bars system for performing the Brazilian test consists of large diameter polymeric bars. The instrumentation of the test with a high speed numeric video camera shows that the studied material is still ductile at this high rate of loading. After a large deformation of the sample, we observe an initial failure at the centre and propagation of failure by shearing.
© EDP Sciences 2003