Dissertation/Thesis Abstract

Impact Response of a Randomly Oriented Fiber Foam Core Sandwich Panel
by Buenrostro Martinez, Ezequiel, M.S., California State University, Long Beach, 2018, 66; 10978163
Abstract (Summary)

Three dimensional fiber reinforced foam cores (3DFRFC) can have improved mechanical properties under specific strain rates and fiber volumes. This study explored different manufacturing techniques for the 3DFRFC and tested the specimens at dynamic loading rates of 69–103 s –1. Flexural bend test showed that glass fibers made the samples stronger yet more brittle while quasi-static compression tests showed a decrease in performance with 3DFRFC. High strain impact tests validated previously published studies by showing an 18–20% reduction in the maximum force experienced by the fiber reinforced core and its ability to dissipate the impact force in the foam core sandwich panel. The results show potential for the cost-effective manufacturing method used in this study to produce an improved composite foam core sandwich panel for armored applications where high strain rates are present and reduce the overall weight of vehicles while maintaining the desired strength performance.

Indexing (document details)
Advisor: Whisler, Daniel
Commitee: Chae, Eun Jung, Minaie, Bob
School: California State University, Long Beach
Department: Mechanical and Aerospace Engineering
School Location: United States -- California
Source: MAI 58/05M(E), Masters Abstracts International
Subjects: Mechanical engineering, Materials science
Keywords: Composites, Foam core, Impact response, Polyurethane, Sandwich, Sanwich panel
Publication Number: 10978163
ISBN: 9781392073827
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