Semi-analytic inverse method for rubber testing at high strain rates

Souheila Aloui (1) , Ramzi Othman (1) , Erwan Verron (1) , Pierrick Guégan (1)

1 GeM - Institut de Recherche en Génie Civil et Mécanique

Because of their low mechanical wave speed, high strain rate testing of rubber is highly difficult. Indeed, stress and strain homogeneity is hard to achieve. In this paper, a semi-analytic inverse solution is proposed. This solution is based on a uni-axial stress state assumption in the specimen. Moreover, a new-Hookean law is assumed for rubber. The new method is successfully applied to a high strain rate test on a synthetic rubber.

Mots clés: Soft material; High strain rate; Stress heterogeneity; Elastomer; Hopkinson bar

Domaines: Mécanique [physics.med-ph]; Matériaux

Souheila Aloui, Ramzi Othman, Erwan Verron, Pierrick Guégan. Semi-analytic inverse method for rubber testing at high strain rates. Mechanics Research Communications, 2013, 47, pp.97-101. ⟨10.1016/j.mechrescom.2012.10.002⟩. ⟨hal-01007277⟩