INFLUENCE OF 2 SECONDARY EFFECTS ON SHEAR FAILURE OF CANTILEVER WITH ATTACHED MASS BLOCK UNDER IMPULSIVE LOADING

The influence of two secondary effects, rotatory inertia and presence of a crack, on the dynamic plastic shear failure of a cantilever with an attached mass block at its tip subjected to impulsive loading is in vestigated. It is illustrated that the consideration of the rotatory i nertia of the cantilever and the presence of a crack at the upper root of the beam both increase the initial kinetic energy of the block req uired to cause shear failure at the interface between the beam tip and the tip mass, where the initial velocity has discontinuity Therefore, the influence of these two secondary effects on the dynamic shear fai lure is not negligible.