Abstract
An approximate theoretical analysis, based on a power law stress-strain relationship throughout, is presented herein to examine the behaviour of clamped beams subjected to uniformly distributed impulsive loads, which represents an extension of the previous study. In particular, the rupture (tensile tearing) of the beams under impulsive loading is predicted by an effective strain failure criterion which takes into consideration the influence of the transverse shear on the axial tensile strain. It is found that the present theoretical predictions are in good agreement with the experimental observations in terms of the maximum permanent transverse displacement and the critical input impulse causing beam tensile tearing failure when material strain rate sensitivity is taken into account.
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