TY - GEN
T1 - Shear stress analysis and optimization of dual-zone adhesive-bonded steel/Al joints
AU - Chen, Xiaokai
AU - Fu, Dong
AU - Guo, Ziyu
AU - Li, Mengqiang
N1 - Publisher Copyright:
© Springer Nature Singapore Pte Ltd. 2020.
PY - 2020
Y1 - 2020
N2 - As one of the fundamental joints, adhesive joint can be applied to hybrid joints for the complex structures. To improve the material utilization of adhesive, the stress distribution of dual-zone adhesive-bonded joints was studied and optimized. Considering the elastic deformation of adhesives, the analytical models for shear stress of single- and dual-zone adhesive joint were deduced. The analytical model of single-zone adhesive joint for steel/Al was validated by FEA model and test data. Based on the analytical model, the shear stress distribution of dual-zone adhesive-bonded steel/Al joints was optimized. Results of optimization show that the stress level in dual-zone adhesive is higher than the traditional adhesive joint structure, which means the mechanical potential of adhesive can be realized better. The adhesive usage amount in dual-zone structure can be reduced 11.7% by keeping the overlapping length constant and the strength of joints not decreasing. In addition, the adhesive length close to lower stiffness material is longer than the other side which can remedy the defect of stiffness imbalance of adherends.
AB - As one of the fundamental joints, adhesive joint can be applied to hybrid joints for the complex structures. To improve the material utilization of adhesive, the stress distribution of dual-zone adhesive-bonded joints was studied and optimized. Considering the elastic deformation of adhesives, the analytical models for shear stress of single- and dual-zone adhesive joint were deduced. The analytical model of single-zone adhesive joint for steel/Al was validated by FEA model and test data. Based on the analytical model, the shear stress distribution of dual-zone adhesive-bonded steel/Al joints was optimized. Results of optimization show that the stress level in dual-zone adhesive is higher than the traditional adhesive joint structure, which means the mechanical potential of adhesive can be realized better. The adhesive usage amount in dual-zone structure can be reduced 11.7% by keeping the overlapping length constant and the strength of joints not decreasing. In addition, the adhesive length close to lower stiffness material is longer than the other side which can remedy the defect of stiffness imbalance of adherends.
KW - Shear stress analytical model
KW - Steel/Al adhesive-bonded joints
KW - Structure optimization
UR - http://www.scopus.com/inward/record.url?scp=85090099210&partnerID=8YFLogxK
U2 - 10.1007/978-981-13-9718-9_44
DO - 10.1007/978-981-13-9718-9_44
M3 - Conference contribution
AN - SCOPUS:85090099210
SN - 9789811397172
T3 - Lecture Notes in Electrical Engineering
SP - 581
EP - 592
BT - Proceedings of China SAE Congress 2018, Selected Papers
PB - Springer
T2 - China Society of Automotive Engineers Congress, SAE-China 2018
Y2 - 6 November 2018 through 8 November 2018
ER -