Calculating of stress intensity factors of soldered joints with multiple cracks

Al Emran Ismail (Universiti Tun Hussein Onn Malaysia)
Saifulnizan Jamian (Universiti Tun Hussein Onn Malaysia)
Kamarul Azhar Kamarudin (Universiti Tun Hussein Onn Malaysia)
Mohd Khir Mohd Nor (Universiti Tun Hussein Onn Malaysia)
Mohd Norihan Ibrahim (Universiti Tun Hussein Onn Malaysia)
Ahmad Mubarak Tajul Arifin (Universiti Tun Hussein Onn Malaysia)
Mohd Fahrul Hassan (Universiti Tun Hussein Onn Malaysia)
Mohd Rasidi Ibrahim (Universiti Tun Hussein Onn Malaysia)
Mohammad Zulafif Rahim (Universiti Tun Hussein Onn Malaysia)

Indonesian Journal of Electrical Engineering and Computer Science
Vol 14, No 1: April 2019

This paper presents the solution of stress intensity factors of multiple cracks at the joint between two materials. Based on the literature survey, there are tremendous number of works found on the study of edge and central cracks. On the other hand, several papers on the multiple cracks can be also be found in open literature. However, the work on multiple cracks with different crack sizes are hard to find. Therefore, this paper focuses to study the crack interaction obtained from different crack sizes. ANSYS APDL is used to model and solve the problems considering the cracks embedded in the plain strain plate under tension stress. There are two important parameters are considered such crack sizes and mechanical mismatches between joint and based materials. Since the crack is symmetrical, only a quarter model is used and verified. Based on the numerical simulation, it is found that two factors are significantly affected the multiple cracks at the joints such as mechanical mismatches and relative crack sizes.