Displacement recovery and energy dissipation of crimped NiTi SMA fibers during cyclic pullout tests
This study examines the cyclic pullout behavior of two types of cold-drawn NiTi shape memory alloy fibers, such as paddled and crimped fibers. For this, two diameters of 1.0 and 0.7 mm are considered. The experimental cyclic pullout results show that the deep crimped fibers produce a higher maximum...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2022-12-01
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| Series: | Reviews on Advanced Materials Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/rams-2022-0285 |
| _version_ | 1811171449348554752 |
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| author | Choi Eunsoo Lee Jong-Han Choi Jongkwon |
| author_facet | Choi Eunsoo Lee Jong-Han Choi Jongkwon |
| author_sort | Choi Eunsoo |
| collection | DOAJ |
| description | This study examines the cyclic pullout behavior of two types of cold-drawn NiTi shape memory alloy fibers, such as paddled and crimped fibers. For this, two diameters of 1.0 and 0.7 mm are considered. The experimental cyclic pullout results show that the deep crimped fibers produce a higher maximum pullout resistance than the shallow crimped fibers. When heated, the shallow crimped fiber increases the diameter more significantly than the deep crimped fiber, whereas the fiber wave depth decreases more than the deep crimped fiber. Thus, the maximum pullout resistance increases for the heated shallow crimped fiber and decreases for the heated deep crimped fiber. The displacement recovery ratio (DRR) reduction with an increasing slip is significant for the fiber with a low anchoring bond. The high anchoring bond fiber also introduces a higher average DRR than the fiber with a relatively low anchoring bond. Under heating treatment, the average DRR increases due to the prestressing in the fiber due to the shape memory effect. However, the anchoring bond of the fiber is enough to produce prestressing in the fiber. The anchoring bond of the fiber and the prestressing also influence the energy dissipation (ED). The higher anchoring bond results in a higher ED value, and the prestressing in the fiber contributes more to the increased ED values. |
| first_indexed | 2024-04-10T17:14:15Z |
| format | Article |
| id | doaj.art-b194c4e5cd3e425098ed4dcfb4547247 |
| institution | Directory Open Access Journal |
| issn | 1605-8127 |
| language | English |
| last_indexed | 2024-04-10T17:14:15Z |
| publishDate | 2022-12-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Reviews on Advanced Materials Science |
| spelling | doaj.art-b194c4e5cd3e425098ed4dcfb45472472023-02-05T18:11:57ZengDe GruyterReviews on Advanced Materials Science1605-81272022-12-0161197799610.1515/rams-2022-0285Displacement recovery and energy dissipation of crimped NiTi SMA fibers during cyclic pullout testsChoi Eunsoo0Lee Jong-Han1Choi Jongkwon2Department of Civil and Environmental Engineering, Hongik University, Seoul 04066, Republic of KoreaDepartment of Civil and Environmental Engineering, Inha University, Incheon 22212, Republic of KoreaDepartment of Civil and Environmental Engineering, Hongik University, Seoul 04066, Republic of KoreaThis study examines the cyclic pullout behavior of two types of cold-drawn NiTi shape memory alloy fibers, such as paddled and crimped fibers. For this, two diameters of 1.0 and 0.7 mm are considered. The experimental cyclic pullout results show that the deep crimped fibers produce a higher maximum pullout resistance than the shallow crimped fibers. When heated, the shallow crimped fiber increases the diameter more significantly than the deep crimped fiber, whereas the fiber wave depth decreases more than the deep crimped fiber. Thus, the maximum pullout resistance increases for the heated shallow crimped fiber and decreases for the heated deep crimped fiber. The displacement recovery ratio (DRR) reduction with an increasing slip is significant for the fiber with a low anchoring bond. The high anchoring bond fiber also introduces a higher average DRR than the fiber with a relatively low anchoring bond. Under heating treatment, the average DRR increases due to the prestressing in the fiber due to the shape memory effect. However, the anchoring bond of the fiber is enough to produce prestressing in the fiber. The anchoring bond of the fiber and the prestressing also influence the energy dissipation (ED). The higher anchoring bond results in a higher ED value, and the prestressing in the fiber contributes more to the increased ED values.https://doi.org/10.1515/rams-2022-0285displacement recoverycyclic pullout testcrimped sma fiber |
| spellingShingle | Choi Eunsoo Lee Jong-Han Choi Jongkwon Displacement recovery and energy dissipation of crimped NiTi SMA fibers during cyclic pullout tests Reviews on Advanced Materials Science displacement recovery cyclic pullout test crimped sma fiber |
| title | Displacement recovery and energy dissipation of crimped NiTi SMA fibers during cyclic pullout tests |
| title_full | Displacement recovery and energy dissipation of crimped NiTi SMA fibers during cyclic pullout tests |
| title_fullStr | Displacement recovery and energy dissipation of crimped NiTi SMA fibers during cyclic pullout tests |
| title_full_unstemmed | Displacement recovery and energy dissipation of crimped NiTi SMA fibers during cyclic pullout tests |
| title_short | Displacement recovery and energy dissipation of crimped NiTi SMA fibers during cyclic pullout tests |
| title_sort | displacement recovery and energy dissipation of crimped niti sma fibers during cyclic pullout tests |
| topic | displacement recovery cyclic pullout test crimped sma fiber |
| url | https://doi.org/10.1515/rams-2022-0285 |
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