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Rate-sensitive tensile resistance of glass textile reinforced cementitious composites
Highlights The tensile behavior of GTRCCs at the strain rates between 0.000333 and 100 s−1 was investigated. The tensile strength of GTRCCs at high strain rates was noticeably higher than that at a static rate. The interfacial bond strength between G and mortar matrix played a key role in the rate sensitive tensile response of GTRCCs. The GTRCCs using G with mesh direction 1 produced higher tensile strength than those using G with mesh direction 2 at both static and high strain rates.
Abstract This study investigated the sensitivity of tensile resistance of glass textile (G) reinforced cementitious composites (GTRCCs) containing G with two types of mesh direction (G-M1 and G-M2) on the strain rates between 0.000333 and 100 s−1 using an improved strain energy frame impact machine for measuring. The tensile behavior, strain rate effects on tensile strength of GTRCCs and source of enhancements at high strain rates were discussed. The GTRCCs maintained the tensile strain hardening response even at high strain rates. The tensile strength of GTRCCs at high strain rates of 35–100 s−1 (between 14 and 17.72 MPa) were approximately twice that at the static (6.89 MPa). The interfacial bond strength between G and the mortar matrix played a key role in the rate-sensitive tensile response of GTRCCs. At high strain rates, the interfacial bond strength was significantly improved due to the inertial effect, and the high energy was required to damage the inter-atomic bond in composites for a short incubation time. G-M1 was more effective than G-M2 in reinforcing within the composites.
Rate-sensitive tensile resistance of glass textile reinforced cementitious composites
Highlights The tensile behavior of GTRCCs at the strain rates between 0.000333 and 100 s−1 was investigated. The tensile strength of GTRCCs at high strain rates was noticeably higher than that at a static rate. The interfacial bond strength between G and mortar matrix played a key role in the rate sensitive tensile response of GTRCCs. The GTRCCs using G with mesh direction 1 produced higher tensile strength than those using G with mesh direction 2 at both static and high strain rates.
Abstract This study investigated the sensitivity of tensile resistance of glass textile (G) reinforced cementitious composites (GTRCCs) containing G with two types of mesh direction (G-M1 and G-M2) on the strain rates between 0.000333 and 100 s−1 using an improved strain energy frame impact machine for measuring. The tensile behavior, strain rate effects on tensile strength of GTRCCs and source of enhancements at high strain rates were discussed. The GTRCCs maintained the tensile strain hardening response even at high strain rates. The tensile strength of GTRCCs at high strain rates of 35–100 s−1 (between 14 and 17.72 MPa) were approximately twice that at the static (6.89 MPa). The interfacial bond strength between G and the mortar matrix played a key role in the rate-sensitive tensile response of GTRCCs. At high strain rates, the interfacial bond strength was significantly improved due to the inertial effect, and the high energy was required to damage the inter-atomic bond in composites for a short incubation time. G-M1 was more effective than G-M2 in reinforcing within the composites.
Rate-sensitive tensile resistance of glass textile reinforced cementitious composites
Truong, Van Doan (author) / Noh, Hyeon Woo (author) / Kim, Dong Joo (author)
2022-10-21
Article (Journal)
Electronic Resource
English
Cementitious composites reinforced with textile fabrics
| British Library Conference Proceedings | 1999