Mechanism Of The Absorption Of High Energy By Foamed Materials - Foamed Rigis Polyurethane And Foamed Glass.

Energy absorbability was studied under a compressive load. The brittle materials proved to absorb much energy in a manner much similar to ductile materials. A mechanism for such high energy absorption was proposed, based on a fracture model in which crushing of cells initiates at the weakest cell followed by propagation to cells lying in a direction perpendicular to the comprehensive force; then the crushing propagates to another layer under the compressive force after the completion of the first layer crushing.