Modelling of Elastic-Plastic Bending of Beams Using a Roller Bending Machine

[+] Author and Article Information
N. E. Hansen, O. Jannerup

Control Engineering Laboratory, Technical University of Denmark, Lyngby, Denmark

J. Eng. Ind 101(3), 304-310 (Aug 01, 1979) (7 pages) doi:10.1115/1.3439511 History: Received July 24, 1978; Online July 15, 2010


A model for bending steelbeams with rectangular crossection on a three-roller bending machine has been set up. The main effort has been paid to the geometry of the process. The basis for the model is an assumed triangular moment distribution between the rollers, and, considering the stress-strain relationship of the actual material (cold-drawn steel), the calculations based on the model lead to a curvature function which differs much from the often assumed function: the circle. The calculated curvature functions have been compared to experimentally obtained functions, and good agreement has been found.

Copyright © 1979 by ASME
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