Impact resistance of composite materials under biaxal preloading

Christian Garnier (1) , Toufik Djilali (2) , Romain Brault (2) , Sebastien Mistou (1)

1 LGP - Laboratoire Génie de Production
2 CRC Composites

The first aim of this study is to analyze the impact behavior of pre-loaded composite. Indeed, a bi-axial load is applied to the composite specimen, in order to keep in touch with a real case of composite fuselage. Then, this pre-loaded specimen is impacted by a pendulum. The used energy and velocity are weak in order to be in the case of low-energy and low-velocity impact. The second aim of this study is to develop and design a pendulum device to be integrated to the biaxial fatigue loading. Moreover, two Non Destructive Inspections (Sonoscan and InfraRed Thermography) is used in order to establish links between pre-load and induced impact damage.

Mots clés: Low-velocity impact; Bi-axial preloading; Composite; InfraRed thermography; Sonoscan

Domaines: Matériaux

Christian Garnier, Toufik Djilali, Romain Brault, Sebastien Mistou. Impact resistance of composite materials under biaxal preloading. Key Engineering Materials, 2011, vol. 482, pp. 39-48. ⟨10.4028/www.scientific.net/KEM.482.39⟩. ⟨hal-00828347⟩