Interlaminar shear strength and failure analysis of a GLARE laminate

Authors

  • Costanzo Bellini University of Cassino and Southern Lazio, Italy
  • Vittorio Di Cocco University of Cassino and Southern Lazio, Italy
  • Francesco Iacoviello University of Cassino and Southern Lazio, Italy
  • Luca Sorrentino University of Cassino and Southern Lazio, Italy

Keywords:

GLARE, hybrid composite, interlaminar shear behaviour, damage analysis

Abstract

Hybrid materials like Fibre Metal Laminates (FMLs) are increasingly valued for their superior mechanical performance, combining high stiffness-to-weight and strength-to-weight ratios with excellent toughness, fatigue resistance, and damage tolerance. This study investigates the interlaminar shear behaviour of a GLARE (Glass Laminate Aluminium Reinforced Epoxy) composite. Mechanical performance was evaluated using a three-point bending test on a short beam to induce a shear stress state. Analysis of the shear stress-displacement curve revealed continuous non-linearity from an early stage, indicating progressive internal damage accumulation. A sudden, catastrophic drop in shear stress immediately after reaching the peak stress suggested interlaminar shear failure. Micrographic analysis confirmed multiple delamination instances within the GLARE specimen.

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Published

2025-12-13

Issue

Vol. 70 No. 1-3 (2025): THE FUTURE OF APPLIED MECHANICS

Section

Articles

Copyright (c) 2025 The Romanian Journal of Technical Sciences. Applied Mechanics.

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