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Polymers 2016, 8(5), 196; doi:10.3390/polym8050196

Mechanical Characterization of the Tensile Properties of Glass Fiber and Its Reinforced Polymer (GFRP) Composite under Varying Strain Rates and Temperatures

1
College of Civil Engineering, Hunan University, Changsha 410082, China
2
School of Sustainable Engineering and Built Environment, Arizona State University, Tempe, AZ 85287, USA
*
Authors to whom correspondence should be addressed.
Academic Editor: Alper Ilki
Received: 26 March 2016 / Revised: 30 April 2016 / Accepted: 10 May 2016 / Published: 19 May 2016
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Abstract

Unidirectional glass fiber reinforced polymer (GFRP) is tested at four initial strain rates (25, 50, 100 and 200 s−1) and six temperatures (−25, 0, 25, 50, 75 and 100 °C) on a servo-hydraulic high-rate testing system to investigate any possible effects on their mechanical properties and failure patterns. Meanwhile, for the sake of illuminating strain rate and temperature effect mechanisms, glass yarn samples were complementally tested at four different strain rates (40, 80, 120 and 160 s−1) and varying temperatures (25, 50, 75 and 100 °C) utilizing an Instron drop-weight impact system. In addition, quasi-static properties of GFRP and glass yarn are supplemented as references. The stress–strain responses at varying strain rates and elevated temperatures are discussed. A Weibull statistics model is used to quantify the degree of variability in tensile strength and to obtain Weibull parameters for engineering applications. View Full-Text
Keywords: polymer-matrix composites (PMCs); mechanical properties; stress/strain curves; deformation; statistics polymer-matrix composites (PMCs); mechanical properties; stress/strain curves; deformation; statistics
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MDPI and ACS Style

Ou, Y.; Zhu, D.; Zhang, H.; Huang, L.; Yao, Y.; Li, G.; Mobasher, B. Mechanical Characterization of the Tensile Properties of Glass Fiber and Its Reinforced Polymer (GFRP) Composite under Varying Strain Rates and Temperatures. Polymers 2016, 8, 196.

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