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- W4377012305 abstract "Abstract Although SMA/PVA hybrid fiber reinforced cementitious composites (SMA/PVA-ECC) exhibit excellent crack closure and deformation recovery capabilities, the research on their fundamental mechanical properties is still limited. This study investigates the tensile mechanical properties of SMA/PVA-ECC materials by conducting uniaxial tensile tests, analyzing the failure behavior, stress-strain curves, and characteristic parameters of the specimens, comparing the influence of SMA fiber content and diameter, and establishing a tensile constitutive model. The results show that the residual crack width of SMA/PVA-ECC specimens significantly decreases after unloading, and the SMA fiber content and diameter have a significant impact on the tensile properties of the specimens. The comprehensive tensile properties of specimens with a fiber diameter of 0.2 mm and content of 0.2% are the best, with their initial cracking strength, ultimate strength, and strain increasing by 56.4%, 23.6%, and 13.4%, respectively, compared to ECC specimens. The proposed bilinear tensile constitutive model has high accuracy. This study provides a theoretical basis for further research on SMA/PVA-ECC materials." @default.
- W4377012305 created "2023-05-19" @default.
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- W4377012305 date "2023-05-19" @default.
- W4377012305 modified "2023-09-29" @default.
- W4377012305 title "Mechanical Properties of SMA/PVA-ECC under Uniaxial Tensile Loading" @default.
- W4377012305 doi "https://doi.org/10.21203/rs.3.rs-2813568/v1" @default.
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