Influence of damage (delamination) on modal responses of sandwich composite panel-numerical and experimental analysis

Naveen Kumar Akkasali, Trupti Ranjan Mahapatra, Gaurav Kumar, Usha Rani Sahoo, Ashish Kumar Meher, Subrata Kumar Panda, School of Mechanical Engineering, SASTRA Deemed University, Department of Production Engineering, Veer Surendra Sai University of Technology, Department of Mechanical Engineering, National Institute of Technology Rourkela

Journal of Sandwich Structures & Materials

Published online on April 22, 2026

Abstract

Journal of Sandwich Structures & Materials, Ahead of Print.
The current research numerically investigates the influence of delamination on the natural frequencies of intact and delaminated glass fiber–reinforced composite (GFRC) sandwich panels. The sandwich structure synthesized via the hand lay-up method ...