Experimental Investigation into the Influence of Stacking Sequence on Fatigue Damage in a Glass/Epoxy Composite

In this study, we conduct static tensile and fatigue tests on laminated composites to evaluate their mechanical properties. The experimental assessments aim to gauge the durability and energy-dissipating capabilities of the material. Initially, static tests are performed to analyze the tensile behavior of the beams, determine fracture parameters, and establish characteristics for subsequent fatigue tests. Subsequently, fatigue analyses are carried out to assess the fatigue resistance of the structures. The impact of stacking sequence on stiffness, hysteresis loop, energy absorption, and loss factor is investigated for two different laminates, and a comparative analysis of composite behaviors is presented. The findings reveal that the composite with a [02,902] s sequence demonstrates superior energy dissipation, resulting in higher loss factors. These identified properties serve as sensitive indicators of damage in composites throughout their service life. The primary objective of this research is to characterize the static and fatigue properties of the material, thereby exploring its potential applications in various industries.