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

Gustavo Quino; Antonio Pellegrino; Vito L. Tagarielli; Nik Petrinic

doi:10.1016/j.compositesb.2018.03.044

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

Gustavo Quino, Antonio Pellegrino, Vito L. Tagarielli, Nik Petrinic

Research output: Contribution to journal › Article › peer-review

22 Citations (SciVal)

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.

Original language	English
Pages (from-to)	213-221
Number of pages	9
Journal	Composites Part B: Engineering
Volume	146
DOIs	https://doi.org/10.1016/j.compositesb.2018.03.044
Publication status	Published - 1 Aug 2018

Funding

This project was supported by EPSRC, [dstl] and Rolls-Royce plc [grant EP/G042586/1]. We are grateful to S. Carter and J. Fullerton for assistance with specimen manufacturing. Dr Tagarielli acknowledges the Department of Aeronautics at Imperial and the Department of Engineering Science at Oxford for supporting his visiting position at Oxford. This project was supported by EPSRC , [dstl] and Rolls-Royce plc [grant EP/G042586/1 ]. We are grateful to S. Carter and J. Fullerton for assistance with specimen manufacturing. Dr Tagarielli acknowledges the Department of Aeronautics at Imperial and the Department of Engineering Science at Oxford for supporting his visiting position at Oxford.

Funders	Funder number
Defence Science and Technology Laboratory
Engineering and Physical Sciences Research Council	EP/G042586/1
Rolls Royce

Keywords

Diffusion
Epoxy
Salt water
Strain rate sensitivity
Water absorption

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1016/j.compositesb.2018.03.044

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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.",

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

Abstract

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Keywords

ASJC Scopus subject areas

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