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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.24 No.2
- 발행연도
- 2019.1
- 수록면
- 157 - 171 (15page)
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초록· 키워드
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This study investigated the effects of the geometric parameters of superelastic shape memory alloy (SE SMA) fibers on the pullout displacement recovering and self-healing capacity of reinforced cementitious composites. Three diameters of 0.5, 0.7 and 1.0 mm and two different crimped lengths of 5.0 and 10.0 mm were considered. To provide best anchoring action and high bond between fiber and cement mortar, the fibers were crimped at the end to create spear-head shape. The single fiber cement-based specimens were manufactured with the cement mortar of a compressive strength of 84 MPa with the square shape at the top and a dog-bone shape at the bottom. The embedded length of each fiber was 15 mm. The pullout test was performed with displacement control to obtain monotonic or hysteretic behaviors. The results showed that pullout displacements were recovered after fibers slipped and stuck in the specimen. The specimens with fiber of larger diameter showed better displacement recovering capacity. The flag-shaped behavior was observed for all specimens, and those with fiber of 1.0 mm diameter showed the clearest one. It was observed that the length of fiber anchorage did not have a significant effect on the displacement recovery, pullout resistance and self-healing capacity.
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참고문헌 (44)
참고문헌 신청
Abou-Elfath, H. / 2017 / Evaluating the ductility characteristics of self-centering buckling-restrained shape memory alloy braces / Smart Mater. Struct 26(5)
Diego A. Aguirre / 2014 / Damping and frequency changes induced by increasing levels of inelastic seismic demand / Smart Structures and Systems, An International Journal 14(3):445~468
M. Baghani / 2012 / A thermodynamically-consistent 3D constitutive model for shape memory polymers / International Journal of Plasticity 35:13~30
Eunsoo Choi / 2018 / Investigating Self-Centering Capacity of Superelastic Shape Memory Alloy Fibers with Different Anchorages Through Pullout Tests / Journal of Nanoscience and Nanotechnology 18(9):6228~6232
Eunsoo Choi / 2015 / Seismic retrofit of circular RC columns through using tensioned GFRP wires winding / Composites Part B: Engineering 83:216~225
Diego A. Aguirre / 2014 / Damping and frequency changes induced by increasing levels of inelastic seismic demand / Smart Structures and Systems, An International Journal 14(3):445~468
M. Baghani / 2012 / A thermodynamically-consistent 3D constitutive model for shape memory polymers / International Journal of Plasticity 35:13~30
Eunsoo Choi / 2018 / Investigating Self-Centering Capacity of Superelastic Shape Memory Alloy Fibers with Different Anchorages Through Pullout Tests / Journal of Nanoscience and Nanotechnology 18(9):6228~6232
Eunsoo Choi / 2015 / Seismic retrofit of circular RC columns through using tensioned GFRP wires winding / Composites Part B: Engineering 83:216~225
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