DYNAMIC ANALYSIS OF 3 POINT BEND SPECIMENS UNDER IMPACT

A simple one dimensional inertial model is presented for transient res ponse analysis of notched beams under impact, and extracting dynamic i nitiation toughness values. The model includes the effects of striker mass interactions, and contact deformations of the beam. Displacement time history of the striker mass is applied to the model as forcing fu nction. The model is validated by comparison with the experimental inv estigation on ductile aluminium 6061 alloy and brittle polymer, PMMA.