Assessment of the thermomechanical performance of continuous glass fiber-reinforced thermoplastic laminates
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Date
2018-05-01
Authors
Nikforooz, M.
Montesano, John
Golzar, M.
Shokrieh, Mahmood Mehrdad
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
The effects of temperature on the static tensile behavior of continuous E-glass/polyamide laminates were studied in order to assess the feasibility of using the material system for structural applications. Uniaxial tensile tests were conducted on [0]8, [90]8, [02/902]s and [04/904]s laminates at multiple temperatures above and below the glass transition temperature, which was measured using different methods. Optical and scanning electron microscopy were performed on the tested samples, and the effects of temperature on failure modes were investigated. The [0]8 and [90]8 laminates displayed three reduction stages in modulus versus temperature, where the largest reduction was in the glass transition region as a result of notable softening of the polyamide matrix, as confirmed by fractographic analysis. However, the [02/902]s and [04/904]s laminates displayed the largest modulus reduction prior to the glass transition temperature with little reduction beyond, which was attributed to matrix softening coupled with in situ ply constraining effects.
Description
The final publication is available at Elsevier via http://dx.doi.org/10.1016/j.polymertesting.2018.02.023 © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
Keywords
Continuous glass/polyamide, Fractography, Mechanical properties, Thermomechanical behavior