He, X. and Guedes Soares, C. (2021), “Experimental study on the dynamic behavior of beams under repeated impacts”, International Journal of Impact Engineering, Vol. 147, 103724 (23 pages)

Repeated drop weight impact tests have been performed on mild steel beams and aluminum alloy beams. The experimental results related to impact force, velocity of the indenter, displacement, absorbed energy process are presented and analyzed. The impact process between the indenter and the specimen is described. Pseudo-shakedown phenomenon was observed during the repeated impacts. When a pseudo-shakedown state is reached, the maximum contact force, maximum displacement of the beam, rebound velocity of the striker, contact time, all of them reach a constant value respectively and the permanent displacement of beam will not increase further more under identical repeated impacts.

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