TY - CONF

T1 - Performance of Glass to Iron-based Shape Memory Alloy Adhesive Shear Joints with Different Geometry

AU - Deng, Zhikang

AU - Silvestru, Vlad Alexandru

AU - Michels, Julien

AU - Li, Lingzhen

AU - Ghafoori, Elyas

AU - Taras, Andreas

N1 - Funding Information: This research was financially supported by Innosuisse through the innovation cheque number 51447.1 INNO-ENG.

PY - 2022/6/20

Y1 - 2022/6/20

N2 - Previous research has shown that glass beams with external, mechanical post-tensioning along their edges show better structural performance than glass beams without any such reinforcement. The initial and post-fracture load-bearing capacity of glass beams can be increased by reinforcing them with stainless steel or fiber-reinforced plastic (FRP) tendons that are post-tensioned and connected to the beam edges. However, post-tensioning of stainless steel or FRP bars or strips is complex and challenging because it often requires special setups, such as hydraulic jacks. Iron-based shape memory alloys (Fe-SMAs) are promising post-tensioning materials due to their efficient activation procedure and good mechanical properties. The target prestress level can be introduced by heating the Fe-SMA to a specific temperature followed by cooling down naturally to ambient temperature. As a contribution to assessing the feasibility of strengthening glass elements with adhesively bonded Fe-SMA strips, this paper focuses on the bond behavior of glass-to-Fe-SMA lap-shear joints based on numerical investigations. A finite element model is developed to evaluate the effect of adhesive thickness, Fe-SMA strip thickness and bond length on the structural behavior of glass to Fe-SMA lap-shear joints.

AB - Previous research has shown that glass beams with external, mechanical post-tensioning along their edges show better structural performance than glass beams without any such reinforcement. The initial and post-fracture load-bearing capacity of glass beams can be increased by reinforcing them with stainless steel or fiber-reinforced plastic (FRP) tendons that are post-tensioned and connected to the beam edges. However, post-tensioning of stainless steel or FRP bars or strips is complex and challenging because it often requires special setups, such as hydraulic jacks. Iron-based shape memory alloys (Fe-SMAs) are promising post-tensioning materials due to their efficient activation procedure and good mechanical properties. The target prestress level can be introduced by heating the Fe-SMA to a specific temperature followed by cooling down naturally to ambient temperature. As a contribution to assessing the feasibility of strengthening glass elements with adhesively bonded Fe-SMA strips, this paper focuses on the bond behavior of glass-to-Fe-SMA lap-shear joints based on numerical investigations. A finite element model is developed to evaluate the effect of adhesive thickness, Fe-SMA strip thickness and bond length on the structural behavior of glass to Fe-SMA lap-shear joints.

KW - Adhesive connection

KW - Crack initiation

KW - Crack propagation

KW - Iron-based shape memory alloy

KW - Lap-shear joint

UR - http://www.scopus.com/inward/record.url?scp=85150391558&partnerID=8YFLogxK

U2 - 10.47982/cgc.8.397

DO - 10.47982/cgc.8.397

M3 - Paper

AN - SCOPUS:85150391558

T2 - 8th International Conference on the Architectural and Structural Application of Glass, CGC 2022

Y2 - 23 June 2022 through 24 June 2022

ER -