Measurements of the effects of pure and salt water absorption on the rate-dependent response of an epoxy matrix

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Title: Measurements of the effects of pure and salt water absorption on the rate-dependent response of an epoxy matrix
Authors: Quino, G
Pellegrino, A
Tagarielli, VL
Petrinic, N
Item Type: Journal Article
Abstract: The study reports the measured effects of water absorption on an epoxy resin. Epoxy samples were exposed to wet conditioning environments including pure water, NaCl-water solution, and pure water at boiling temperature, measuring absorption as a function of time. Vickers hardness and indentation creep tests were performed and the mechanical response of the material to uniaxial stress was also measured in both compression and tension, at imposed strain rates in the range 0.001–2500 s−1. It was found that the absorption of both pure and salt water caused decrease of stiffness, yield stress and hardness, but only mildly affected the sensitivity of the response to the imposed strain rate and the tensile ductility. Mechanical testing after re-drying of the samples revealed the permanent effects of water absorption.
Issue Date: 1-Aug-2018
Date of Acceptance: 28-Mar-2018
URI: http://hdl.handle.net/10044/1/61439
DOI: https://dx.doi.org/10.1016/j.compositesb.2018.03.044
ISSN: 1359-8368
Publisher: Elsevier
Start Page: 213
End Page: 221
Journal / Book Title: Composites Part B: Engineering
Volume: 146
Copyright Statement: © 2018 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor/Funder: Engineering & Physical Science Research Council (E
Funder's Grant Number: DFRPNQ00
Keywords: Science & Technology
Technology
Engineering, Multidisciplinary
Materials Science, Composites
Engineering
Materials Science
Epoxy
Strain rate sensitivity
Diffusion
Water absorption
Salt water
MOISTURE SORPTION-DESORPTION
STRAIN-RATE
COMPOSITE-MATERIALS
COMPRESSIVE PROPERTIES
MECHANICAL-PROPERTIES
IMPACT RATES
PART I
RESIN
TEMPERATURE
BEHAVIOR
09 Engineering
Materials
Publication Status: Published
Online Publication Date: 2018-03-29
Appears in Collections:Faculty of Engineering
Aeronautics



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