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A platform for research: civil engineering, architecture and urbanism
Influence of Fiber Type on the Tensile Behavior of Strain-Hardening Cement-Based Composites (SHCC) Under Impact Loading
Abstract Two different types of strain-hardening cement-based composites (SHCC) were investigated under uniaxial quasi-static and impact tensile loading. The normal-strength matrix was combined with polyvinyl-alcohol (PVA) fiber in one composite and with high-density polyethylene (HDPE) fiber in another. A modified Hopkinson bar was used to assess the impact resistance of SHCC in terms of stress–strain relationships at strain rates of up to 120 s−1. SHCC reinforced with PVA fiber, the composite with considerable ductility under quasi-static loading, performed much worse under impact loading than SHCC made with HDPE fiber. This could be traced back to the peculiar alteration of the fiber-matrix interaction depending on the type of fiber and corresponding bond properties, i.e. chemical bond in case of PVA fiber versus frictional bond in case of HDPE fiber.
Influence of Fiber Type on the Tensile Behavior of Strain-Hardening Cement-Based Composites (SHCC) Under Impact Loading
Abstract Two different types of strain-hardening cement-based composites (SHCC) were investigated under uniaxial quasi-static and impact tensile loading. The normal-strength matrix was combined with polyvinyl-alcohol (PVA) fiber in one composite and with high-density polyethylene (HDPE) fiber in another. A modified Hopkinson bar was used to assess the impact resistance of SHCC in terms of stress–strain relationships at strain rates of up to 120 s−1. SHCC reinforced with PVA fiber, the composite with considerable ductility under quasi-static loading, performed much worse under impact loading than SHCC made with HDPE fiber. This could be traced back to the peculiar alteration of the fiber-matrix interaction depending on the type of fiber and corresponding bond properties, i.e. chemical bond in case of PVA fiber versus frictional bond in case of HDPE fiber.
Influence of Fiber Type on the Tensile Behavior of Strain-Hardening Cement-Based Composites (SHCC) Under Impact Loading
Curosu, Iurie (author) / Mechtcherine, Viktor (author) / Forni, Daniele (author) / Cadoni, Ezio (author)
2017-09-05
9 pages
Article/Chapter (Book)
Electronic Resource
English
Behaviour of strain-hardening cement-based composites (SHCC) under repeated tensile loading
| British Library Conference Proceedings | 2007
| British Library Conference Proceedings | 2007