Failure modes of stiffened plates subjected to underwater explosion

A series of model experiments were conducted to explore the failure modes of stiffened plates subjected to underwater explosion. By analyzing the experimental results, three failure modes were established such as Mode I(large plastic deformation),Mode II(tensile failure) and Mode III(shear failure). According to the difference of the load and stiffeners, every failure mode was divided into three sub-modes. And a dimensionless damage factor was proposed to be used as a criterion for predicting the failure modes.