A Review on the Sway of Using Shape Memory Alloys on Enhancing the Behavior of RC Elements under Cyclic Loading | ||||
| Sinai International Scientific Journal | ||||
| Volume 1, Issue 2, October 2024, Page 75-88 PDF (653.06 K) | ||||
| Document Type: Narrative Review Article | ||||
| DOI: 10.21608/sisj.2024.389306 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Khaled Fawzy Kotb  1; Hilal Abdel Kader Mahmoud2; Mohamed Selim2
| ||||
| 1Civil Engineering Department, Faculty of Engineering, Sinai University, Alarish, Egypt. | ||||
| 2Civil Engineering Department, Faculty of Engineering, Zagazig University, Egypt. | ||||
| Abstract | ||||
| Shape memory alloy (SMA) is a class of “Smart Materials” that can exhibit unique thermomechanical phenomena (shape memory effect and superelasticity/pseudoelasticity), which involve the restoration (remembrance) of the SMA’s original shape after being excessively deformed. Shape memory effect (SME) is the thermally-triggered shape recovery of SMA when the alloy isin the martensite phase (low-temperature phase). However, superelasticity effect (SE), which is observed at the austenite phase (high-temperature phase), is the ability of the mechanically stressed alloy to restore its original shape when unloaded even after being strained beyond its linear range. The aim of this paper is to highlight the importance of SMA in improving the properties and behavior of structural elements under the influence of lateral loads. Their special ability to restore buildings to their former shape after a load is removed without causing heating or a considerable amount of persistent deformation (superelasticity) is what makes them distinctive. These characteristics have the power to significantly raise various structures' security levels. A summary of current research on reinforced concrete (RC) structural elements is given in this work, with a focus on beam-column connections (BCCs) and slab-column connections (SCCs). Form memory alloy (SMA) is used to strengthen these members either internally or externally. However, there are several benefits to using SMA materials in reinforced concrete (RC) components, including reduced lifetime costs, increased durability, increased safety, and greater performance following an earthquake. After reading this article, which summarizes the knowledge now available on SMA properties and outlines several potential applications for SMAs, researchers and qualified engineers should be inspired to expand the usage of SMAs in new and evolving applications. | ||||
| Keywords | ||||
| beam-column connection; slab-column connection; abaqus; shape memory; cyclic load; superelasticity; shape memory effect; repairing; strengthening | ||||
|
Statistics Article View: 139 PDF Download: 157 |
||||
