A non-destructive experimental investigation into the impact response behaviour of lightweight beams

This paper presents investigation by the authors on the response behaviour of a single span beam which is subject to the impact action at its mid-span position by a fallen object. Small scale experimentations were employed to study the response behavior of the beam and its maximum deflection. The investigation conducted at this stage is primarily based on linear elastic behaviour. Thus, a simple beam which is made of timber has been tested. The important effects of a mass protection and cushion in mitigating the effects of the impact are the key findings to be presented in the paper. A simple hand calculation method for predicting maximum deflection of the beam which takes into account these mitigating phenomena are also presented.