Low velocity impact responses and impact-induced damages on steel cord-rubber composite

International audienceSteel cord-rubber composite lamina subjected to low velocity impact was investigated by adrop-weight method with a flat-ended impactor. This paper presents impact responses atdifferent impact energy levels until failure. Energy based approach was used to analyzeimpact responses. Also impact-induced damages were observed by an optical camera. Itrevealed various modes of damages on the steel cord-rubber composite with increasingimpact energy level

Experimental investigation on high strain rate tensile behaviors of steel cord-rubber composite

International audienceHigh strain rate tensile tests of steel cord-rubber composite with different cord orientations have been performed on a servo-hydraulic testing machine. Two types of steel cord arrangement reinforcing to the same rubber material have been studied. Material properties and damage behaviors were identified. Damage mechanisms were studied for range of the strain rates going from 3.3 × 10−3 to 131 s−1. The effect of strain rate revealed tendencies of tensile fracture properties on the steel cord-rubber composites. The onset and the propagation of damage such as interfacial debonding were observed using high speed camera in order to understand damage mechanisms. The failure modes were found to be dependent on the cord orientations inducing particularly tensile fracture properties