Publication Details
Abstract
Bent tube is one type of tube forming process whereby the movement position of the neutral axis shifts to the inner arc and the change of wall thickness distribution occurs. The present paper investigates how these phenomena evolve across the phenomenon and determine the effects of a different coefficient of friction between 0.1 and 0.5 and bending angles ranging from 15° to 90°. Finite element analysis using ABAQUS software has been used to study the behavior of both stainless steel and steel alloys. The findings show that stainless steel has required steady performance with little changes trend in the wall thickness and neutral axis displacement. In comparison, steel alloys are found to be more sensitive to friction, inducing significantly larger changes in the wall thickness and more obvious displacement of the neutral axis, especially at larger bending angles and friction coefficients of strip curvature. The paper is concerned with an examination of material responses through a comparative analysis, focusing on the role of friction to command the structural end results of the tube bending process.