Ballistic performance of a novel auxetic core in sandwich structures under impact loading

Usama Hamid, Dagang Wang, Saeed Althamer, Lihua Wang, Magd Abdel Wahab, Soete Laboratory, Department of Electrical Energy, Mechanical Constructions, and Systems, Faculty of Engineering and Architecture, Ghent University, School of Mechanical and Electrical Engineering, China University of Mining and Technology, College of Engineering, Department of Mechanical, King Khalid University, Kingdom of Saudi Arabia, School of Aerospace Engineering and Applied Mechanics, Tongji University, Parallel and Distributed Systems Laboratory, Jožef Stefan Institute

Journal of Sandwich Structures & Materials

Published online on July 07, 2026

Abstract

Journal of Sandwich Structures & Materials, Ahead of Print.
To enhance energy absorption and ballistic resistance, a novel auxetic unit cell is incorporated into sandwich structures and evaluated in this work. Starting from a perforated design domain and tested under regulated compressive and impact loading ...