J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 995-1001
Dynamic strength of cylindrical fiber-glass shells and basalt plastic shells under multiple explosive loadingM.A. Syrunin and A.G. Fedorenko
Russian Federal Nuclear Center – VNIIEF, Russia
Published online: 26 July 2006
We have shown experimentally that, for cylindrical shells made of oriented fiberglass platic and basalt plastic there exists a critical level of deformations, at which a structure sustains a given number of explosions from the inside. The magnitude of critical deformation for cylindrical fiberglass shells depends linearly on the logarithm of the number of loads that cause failure. For a given type of fiberglass, there is a limiting level of explosive action, at which the number of loads that do not lead to failure can be sufficiently large (more than 102). This level is attained under loads, which are an order of magnitude lower than the limiting loads under a single explosive action. Basalt plastic shells can be repeatedly used even at the loads, which cause deformation by 30-50% lower than the safe value 3.3.5% at single loading.
© EDP Sciences 2006