Title: Dynamic Crush and Energy Absorption of Porous Glass Foam Composite Arrays

Authors: Jungjin Park, Norman Wereley

DOI:

Abstract: A glass foam–polyurethane composite system was investigated to understand how lateral confinement influences low velocity impact performance. Three configurations were tested: unconfined glass foam, glass foam tightly confined by a soft polyurethane layer, and glass foam partially confined with small lateral gaps. The acceleration vs. time, crush ratio vs. velocity, and stress vs. strain responses showed that tight confinement led to earlier onset of densification and a stiffer stress vs. strain curve, whereas partial confinement delayed densification and produced a more gradual stress plateau with reduced secondary acceleration peaks. These findings indicate that carefully introducing limited free space around the glass foam within a compliant polyurethane matrix can tune the crush behavior and impact response of the composite layer for applications such as under hood protection in auto industry.

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Conference: SAMPE 2026

Publication Date: 2026/04/27

SKU: 29

Pages: 11

Price: $22.00