Study on Measures against Spot Weld Fracture of Ultra-High-Strength Steel Frame (Fifth Report)

- Study on Measures against Fracture in Heat Affected Zone around a Joining Point by Spot Welding (Part 2)-

Abstract

Fracture by tensile loading could be made cause in heat affected zone around the spot weld point. On this report, the flange shape which reduces the tensile stress was considered by 4 point bending test simulation. Concretely, some notches were given between the spot weld zone on the flange. Some analysis results of showed the fracture was restrained by the notches. Additionally, the better notch shape was considered based on the results.