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Title: Study The Effect Of Curvature On Spring Back Of Double Curved Steel Sheet Using New Method

Abstract

Spring back is one of main reason for inaccuracy of sheet press formed product. Therefore; prediction of spring back is very important for production of precise products. To calculate the amount of spring back many successful attempts have been done, but unfortunately; most of them belong to the simple cases such as single curved U or V, bending of sheet metals. In this study, an improved yield criterion proposed by Yoshida, have been incorporated in a new formulation for prediction of the spring back in a double curved sheet metal. This criterion is capable to reveal the influence of transient Baushinger effect and work hardening stagnation on spring back analysis. Finally; the effect of some geometrical parameters such as thickness, and curvatures radius will be discussed.

Authors:
; ;  [1]
  1. Department of Metallurgy and Materials Engineering, Faculty of Engineering, university of Tehran, P.O.Box 11365/456, Tehran (Iran, Islamic Republic of)
Publication Date:
OSTI Identifier:
21061774
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 908; Journal Issue: 1; Conference: NUMIFORM 2007: 9. international conference on numerical methods in industrial forming processes, Porto (Portugal), 17-21 Jun 2007; Other Information: DOI: 10.1063/1.2740925; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BENDING; MATERIALS WORKING; METALS; NUMERICAL ANALYSIS; SHEETS; STEELS; STRAIN HARDENING; THICKNESS; TRANSIENTS

Citation Formats

Parsa, M. H., Kazemi, M., and Pishbin, H.. Study The Effect Of Curvature On Spring Back Of Double Curved Steel Sheet Using New Method. United States: N. p., 2007. Web. doi:10.1063/1.2740925.
Parsa, M. H., Kazemi, M., & Pishbin, H.. Study The Effect Of Curvature On Spring Back Of Double Curved Steel Sheet Using New Method. United States. doi:10.1063/1.2740925.
Parsa, M. H., Kazemi, M., and Pishbin, H.. Thu . "Study The Effect Of Curvature On Spring Back Of Double Curved Steel Sheet Using New Method". United States. doi:10.1063/1.2740925.
@article{osti_21061774,
title = {Study The Effect Of Curvature On Spring Back Of Double Curved Steel Sheet Using New Method},
author = {Parsa, M. H. and Kazemi, M. and Pishbin, H.},
abstractNote = {Spring back is one of main reason for inaccuracy of sheet press formed product. Therefore; prediction of spring back is very important for production of precise products. To calculate the amount of spring back many successful attempts have been done, but unfortunately; most of them belong to the simple cases such as single curved U or V, bending of sheet metals. In this study, an improved yield criterion proposed by Yoshida, have been incorporated in a new formulation for prediction of the spring back in a double curved sheet metal. This criterion is capable to reveal the influence of transient Baushinger effect and work hardening stagnation on spring back analysis. Finally; the effect of some geometrical parameters such as thickness, and curvatures radius will be discussed.},
doi = {10.1063/1.2740925},
journal = {AIP Conference Proceedings},
number = 1,
volume = 908,
place = {United States},
year = {Thu May 17 00:00:00 EDT 2007},
month = {Thu May 17 00:00:00 EDT 2007}
}