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Tensile behavior of GFRP bar at quasi-static and high strain rate
https://orcid.org/0000-0002-8610-119X
Highlights The tensile strength and elastic modulus of GFRP bar decreases with increasing diameter. The tensile strength and ultimate strain of GFRP bar increase, and the elastic modulus decreases with increasing strain rate. The scale parameter (σ0) values are highly dependent on the diameter and the strain rate. The micro failure mode of GFRP bar at quasi-static and high strain rate is determined.
Abstract In order to better use GFRP bar in civil engineering applications, a clearer knowledge of its mechanical properties under static and dynamic loadings is necessary. In this study, quasi-static experiments were carried out on glass fiber and GFRP bars with different diameters. High strain rate experiments (102 ∼ 103s−1) were carried out on GFRP bars with a diameter of 6 mm. The results show that GFRP bar has size effect at quasi-static. The tensile strength, elastic modulus decrease with increasing diameter of GFRP bar. GFRP bar has strain rate effect. The tensile strength and maximum strain increase with increasing strain rates. The elastic modulus decrease with increasing strain rates. The distribution function of failure probability of GFRP bar is obtained by Weibull analysis. The difference between static tensile failure mode and high strain rate tensile failure mode of GFRP reinforcement is analyzed by SEM.
Tensile behavior of GFRP bar at quasi-static and high strain rate
https://orcid.org/0000-0002-8610-119X
Highlights The tensile strength and elastic modulus of GFRP bar decreases with increasing diameter. The tensile strength and ultimate strain of GFRP bar increase, and the elastic modulus decreases with increasing strain rate. The scale parameter (σ0) values are highly dependent on the diameter and the strain rate. The micro failure mode of GFRP bar at quasi-static and high strain rate is determined.
Abstract In order to better use GFRP bar in civil engineering applications, a clearer knowledge of its mechanical properties under static and dynamic loadings is necessary. In this study, quasi-static experiments were carried out on glass fiber and GFRP bars with different diameters. High strain rate experiments (102 ∼ 103s−1) were carried out on GFRP bars with a diameter of 6 mm. The results show that GFRP bar has size effect at quasi-static. The tensile strength, elastic modulus decrease with increasing diameter of GFRP bar. GFRP bar has strain rate effect. The tensile strength and maximum strain increase with increasing strain rates. The elastic modulus decrease with increasing strain rates. The distribution function of failure probability of GFRP bar is obtained by Weibull analysis. The difference between static tensile failure mode and high strain rate tensile failure mode of GFRP reinforcement is analyzed by SEM.
Tensile behavior of GFRP bar at quasi-static and high strain rate
https://orcid.org/0000-0002-8610-119X
Highlights The tensile strength and elastic modulus of GFRP bar decreases with increasing diameter. The tensile strength and ultimate strain of GFRP bar increase, and the elastic modulus decreases with increasing strain rate. The scale parameter (σ0) values are highly dependent on the diameter and the strain rate. The micro failure mode of GFRP bar at quasi-static and high strain rate is determined.
Abstract In order to better use GFRP bar in civil engineering applications, a clearer knowledge of its mechanical properties under static and dynamic loadings is necessary. In this study, quasi-static experiments were carried out on glass fiber and GFRP bars with different diameters. High strain rate experiments (102 ∼ 103s−1) were carried out on GFRP bars with a diameter of 6 mm. The results show that GFRP bar has size effect at quasi-static. The tensile strength, elastic modulus decrease with increasing diameter of GFRP bar. GFRP bar has strain rate effect. The tensile strength and maximum strain increase with increasing strain rates. The elastic modulus decrease with increasing strain rates. The distribution function of failure probability of GFRP bar is obtained by Weibull analysis. The difference between static tensile failure mode and high strain rate tensile failure mode of GFRP reinforcement is analyzed by SEM.
Tensile behavior of GFRP bar at quasi-static and high strain rate
Han, Zebin (author) / Qu, Wenjun (author) / Zhu, Peng (author)
2022-11-26
Article (Journal)
Electronic Resource
English
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