Mechanical, morphological, and vibrational damping analysis of hybrid glass fiber mat-reinforced polyester polymer composites 


Vol. 27,  No. 4, pp. 1995-2006, Apr.  2026
10.1007/s12221-026-01351-6


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  Abstract

Polymer composites have replaced traditional materials in offshore and onshore applications due to their outstanding mechanical qualities and corrosion resistance. This study examined woven and random mat glass fiber polyester matrix composites’ tensile, flexural, impact, and vibrational properties. Mechanical properties and free vibration were affected by woven and random fiber mat, fiber ratio, and coupling agent. Fiber breakage on ruptured samples during tensile testing was also examined. Mechanical characteristics peaked at 40% Vf. In mode 1 and mode 2, the maximum damping factor was 20% and 10% Vf, respectively, while the greatest natural frequency was 40% Vf. Random glass fiber mat-reinforced composites have randomly aligned and dispersed fibers in polyester. SEM examination would show randomly scattered fibers in various orientations and haphazard fiber arrangements in various directions in the broken specimen’s cross section. Random fiber orientation often causes a less predictable failure pattern with varied mechanical characteristics. SEM examination lets you analyze composite glass fibers, individually. The analysis can show fiber diameter, surface shape, and defects or contaminants. The composite’s glass fiber homogeneity and characteristics must be established utilizing this evidence. Weaved glass fiber mat-reinforced composites have a preset pattern before impregnating the polyester matrix. SEM investigation of the cross section would indicate woven fiber arrangement. The weave design provides greater strength and stiffness along the weave direction. Tensile testing of fiber-reinforced composites shows fiber pullout. SEM photographs show fibers pushed out of the matrix material by this failure process. This failure occurs when the tensile test force separates the fibers from the matrix due to a poor bond. A tensile force causes fiber pullout because the fibers and matrix have a weaker connection. This reduces load-bearing capacity and composite integrity.

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  Cite this article

[IEEE Style]

S. Satheeshkumar, A. Munimathan, V. Mohanavel, S. Kannan, "Mechanical, morphological, and vibrational damping analysis of hybrid glass fiber mat-reinforced polyester polymer composites," Fibers and Polymers, vol. 27, no. 4, pp. 1995-2006, 2026. DOI: 10.1007/s12221-026-01351-6.

[ACM Style]

S. Satheeshkumar, Arunkumar Munimathan, V. Mohanavel, and Sathish Kannan. 2026. Mechanical, morphological, and vibrational damping analysis of hybrid glass fiber mat-reinforced polyester polymer composites. Fibers and Polymers, 27, 4, (2026), 1995-2006. DOI: 10.1007/s12221-026-01351-6.

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