1126 Influence of Strain Rate on Compressive Deformation of Polystyrene Foam for Vehicle
Details
The influence of strain rate on the compressive strength and the absorbed energy of polystyrene foam used for vehicles was experimentally studied by conducting compression tests at strain rates from 10^<-3> to 830 s^<-1>. In the tests, we used a special load cell which can measure the load applied to specimens for long time without any disturbance due to the reflected stress waves. It was found that the flow stress of polystyrene foam during deformation and the absorbed energy up to the strain of 0.6 increased with the increase of strain rates.
