Investigation of Dynamic Fracture of Elastomers - I.
Résumé
Dynamic fracture of a Polyurethane elastomer has been investigated. Pure shear samples made of Polyurethane have been used for this experimental work. The samples are 200 mm long, 40 mm tall and 3 mm thick. The test protocol involves stretching the sample first to the required strain level and then introducing a seed crack into the specimen. The seed crack then propagates through the specimen thereby breaking it into two pieces. The two steps are recorded by two cameras - a High Resolution (HR) camera to record the initial stretching and a High Speed (HS) camera to record the fracture process. The data set contains the initial loading (stretching) and fracture images of the experiment. The experiments have been performed by Thomas Corre and Michel Coret. The compressed folder consists of folders named according to the initial stretch level. For example L17 would indicate an initial stretch ratio (\lambda_y) of 1.7.