In the present work, the applicability of a fracture mechanics approach based on T-Peel tearing methodology to determine the tearing energy, Gc, of natural rubber/organo-modified montmorillonite nanocomposites was investigated. T-peel tests were performed by loading in tension the arms of the test-pieces at constant cross-head rates and the tearing energy was evaluated from the peel force. The effect of specimen geometry, with particular reference to thickness, on the tearing energy value was analysed. The peel-Test were use to characterize the fracture behaviour of NR organoclay samples with varying the clay content. For each sample the rate dependence of the peelresistance was also explored. A qualitative fracture surface analysis was performed on the tested samples.
Application of T-peel testing for the evaluation of the tearnig resistance of natural rubber / layered silicate nanocomposites
AGNELLI, Silvia;RAMORINO, Giorgio;RICCO', Theonis
2010-01-01
Abstract
In the present work, the applicability of a fracture mechanics approach based on T-Peel tearing methodology to determine the tearing energy, Gc, of natural rubber/organo-modified montmorillonite nanocomposites was investigated. T-peel tests were performed by loading in tension the arms of the test-pieces at constant cross-head rates and the tearing energy was evaluated from the peel force. The effect of specimen geometry, with particular reference to thickness, on the tearing energy value was analysed. The peel-Test were use to characterize the fracture behaviour of NR organoclay samples with varying the clay content. For each sample the rate dependence of the peelresistance was also explored. A qualitative fracture surface analysis was performed on the tested samples.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
