Quasi-static and Impact Compressive Properties of Foamed Polyethylene Film with Closed Cell

Abstract

The compressive properties of foamed polyethylene (PE) film with a closed cell for electronic devices have been investigated. A commercial closed cell foamed PE film was used. Quasi-static testing was carried out at strain rates of 10⁻³ to 10⁻¹ s⁻¹. The strain rate of the impact test was approximately 10² s⁻¹ using split Hopkinson pressure bar method. Within the set of experiments, the compressive stress increased with the strain rate. In particular, the flow stress increased substantially with the increasing strain rate in the impact deformation.