Specific Energy Absorption Evaluation on GFRP Laminate Plate by Optical, Thermographic and Tomographic Analysis

Specific Energy Absorption Evaluation on GFRP Laminate Plate by Optical, Thermographic and... Over the years, a large number of studies have been carried out on glass fiber composite materials in order to analyze their impact behavior. This is very important for the automotive applications, for example for bumper or crash-box. This paper presents the analysis performed on GFRP (Glass Fiber Reinforced Polymer) laminated plate specimens (epoxy matrix reinforced with E- glass, twill woven, 200 g/m2) subjected to drop impact tests. The tests have been conducted at two different impact speeds in Low Impact Velocity LVI maintaining the same impact energy to estimate the strain-rate effect. All the tests were performed referring to ASTM 7136 at standard ambient temperature. Then the SEA (Specific Energy Absorption) of the specimens was calculated, using three different non-destructive measurement techniques (Optical Analysis, IRThermography and X-ray Computed) to analyze the surfaces of rupture and the specimen interlaminar damages. The chosen geometry of the specimens allowed to reduce the costs and to use a simplest test bench giving additional information to the material behavior. . . . . Keywords GFRP Impact NDE Thermography Tomography Introduction tubular CFRP composite specimens to evaluate their impact behaviour. Yuanjian [11] and Vasconcellos [12] evaluated the Over the last few years, automotive engineers http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experimental Techniques Springer Journals

Specific Energy Absorption Evaluation on GFRP Laminate Plate by Optical, Thermographic and Tomographic Analysis

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Publisher
Springer Journals
Copyright
Copyright © 2018 by The Society for Experimental Mechanics, Inc
Subject
Materials Science; Characterization and Evaluation of Materials
ISSN
0732-8818
eISSN
1747-1567
D.O.I.
10.1007/s40799-018-0257-y
Publisher site
See Article on Publisher Site

Abstract

Over the years, a large number of studies have been carried out on glass fiber composite materials in order to analyze their impact behavior. This is very important for the automotive applications, for example for bumper or crash-box. This paper presents the analysis performed on GFRP (Glass Fiber Reinforced Polymer) laminated plate specimens (epoxy matrix reinforced with E- glass, twill woven, 200 g/m2) subjected to drop impact tests. The tests have been conducted at two different impact speeds in Low Impact Velocity LVI maintaining the same impact energy to estimate the strain-rate effect. All the tests were performed referring to ASTM 7136 at standard ambient temperature. Then the SEA (Specific Energy Absorption) of the specimens was calculated, using three different non-destructive measurement techniques (Optical Analysis, IRThermography and X-ray Computed) to analyze the surfaces of rupture and the specimen interlaminar damages. The chosen geometry of the specimens allowed to reduce the costs and to use a simplest test bench giving additional information to the material behavior. . . . . Keywords GFRP Impact NDE Thermography Tomography Introduction tubular CFRP composite specimens to evaluate their impact behaviour. Yuanjian [11] and Vasconcellos [12] evaluated the Over the last few years, automotive engineers

Journal

Experimental TechniquesSpringer Journals

Published: Jun 5, 2018

References

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