SS07: Application of Shape Memory Alloys in Civil Engineering
Organizer: Prof. Raafat El-Hacha, University of Calgary, Canada
Summary: Shape Memory Alloys (SMA) are an emerging form of smart materials that have great potential in civil engineering applications due to their unique ability to change and revert to their shape on demand. SMA have two unique characteristics: super-elastic response and shape memory effect (SME). Super-elasticity is defined as the ability of a SMA to undergo a relatively large deformation when subjected to mechanical load, and to return to the original (un-deformed) shape when the load is removed. SME is defined as the ability of a SMA to recover its original shape through heating after being deformed beyond the elastic limit. Recovered strain can be utilized in several engineering applications such as braces, base isolators, damage repair devices, bridge restrainers, seismic retrofitting, and strengthening of reinforced concrete beams and slabs. Through their unique thermomechanical properties, SMA can also serve as actuating mechanisms in smart structures.
This special session of SEMC 2022 will provide a forum for sharing further insights on these phenomena, and for the exchange of information between researchers working in the area of shape memory alloys and and civil-engineering practitioners. A particular focus will be the application of SMA in civil-engineering infrastructure. Papers that shed new insights on the behaviour of shape memory alloys, as well as those that discuss new applications of SMA, or evaluate the performance of SMA in existing structures (including case studies) are all welcome.