Spline finite strip analysis of forming parameters in roll forming a channel section

A B3-spline finite strip method was built. The method was employed to investigate the effects of forming parameters, such as the bend angle increment, the strip thickness, the material yield limit, the flange length, the web width, and the distance between two roll stations on the peak longitudinal edge membrane strain developed in the cold roll forming process of a channel section. The peak longitudinal edge membrane strain increases as the bend angle increment, the strip thickness, the material yield limit, the flange length, and the web width increase, but decreases as the distance between two roll stations increases. The results from the investigation are consistent with the phenomena observed in the previous roll forming practice.