Dynamic Elastic Properties of E-Glass Randomly Oriented Fiber Reinforced SR GreenPoxy Composite - Experimental and Numerical Analysis

Abstract:

In this article, the in-plane dynamic elastic properties of an E-glass randomly oriented fiber-reinforced SR GreenPoxy 56 composite were obtained based on the procedure specified in the ASTM E1876-21 standard. The experimental frequencies and the ones predicted by the simulation of the experimental procedure using a finite element analysis developed in the Patran/Nastran 2021 package were used in an iterative algorithm using sensitivity analysis to improve the first approaches of the dynamic elastic properties obtained by the impulse excitation technique. These experimental results are compared with the ones obtained by the 2D Short Fiber Composite model of the E-glass randomly oriented fiber-reinforced SR GreenPoxy 56 composite, developed in the Patran/Nastran 2021 software.

• Periodical: Solid State Phenomena (Volume 372)
• Pages: 77-84
• DOI: https://doi.org/10.4028/p-1FIt4W
• Online since: July 2025
• Authors: Armando Ramalho*, Marcelo Gaspar, Mário Correia, Joel Vasco, Carlos Capela, Rui B. Ruben
• Keywords: E-Glass Fibers, GreenPoxy Composite, Halpin-Tsay Model, Impulse Excitation/Resonant Technique, In-Plane Dynamic Elastic Properties

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