New drawbead concepts for sheet metal forming

Nine, Harmon D.

doi:10.1007/bf02834036

Cited by 43 publications

(12 citation statements)

References 3 publications

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“…The corresponding experimental device was first proposed by Nine [7][8][9]. Here the aim was to design an experiment in which it would be possible to distinguish within a process the forces resulting from bending/unbending of the sheet from forces due to friction.…”

Section: Radial Strip Drawing Testmentioning

confidence: 99%

“…However, due to complex combination of bending/unbending strains and friction forces acting on the blank what actually happens in the drawbead is not clearly understood. In order to better understand the involved phenomena, Nine [7][8][9] designed an experimental drawbead simulation rig which allows to separate the contribution of the bending forces from the contribution of the friction forces. Numerical simulation of this experimental device is the object of our third application.…”

Section: Introductionmentioning

confidence: 99%

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Numerical simulation of tribological devices used as a set of benchmarks for comparing contact algorithms

Chabrand

Dubois

Graillet

et al. 2005

Finite Elements in Analysis and Design

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The aim of the present study was to carry out a numerical comparison of different frictional contact algorithms. Therefore three different contact algorithms (Lemke, penalty and Augmented Lagrangian) have been implemented into two finite element codes. The correct implementation and behavior of these contact algorithms has been investigated by modeling four different tribological devices. It is shown that all these different methodologies lead to extremely similar results. Besides these four applications have been carefully described and detailed in such a way that the presented tests can be reproduced. The authors wish that they could serve as a benchmark set in order to allow comparison with other finite element software including frictional contact capabilities.

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Section: Radial Strip Drawing Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical simulation of tribological devices used as a set of benchmarks for comparing contact algorithms

Chabrand

Dubois

Graillet

et al. 2005

Finite Elements in Analysis and Design

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show abstract

“…Each part of sheet undergone successively the same loading history. The most famous process in this family is the draw-bead test [3]. The behaviour of sheet metal in strip-drawing is of significant interest to engineers in stamping industry.…”

Section: Introductionmentioning

confidence: 99%

Analytical model for strip-drawing

et al. 2008

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“…Since the beginning of scientific study of metal forming [4]. Cycles of bending and unbending induced by tool geometrical features such as die radii or drawbeads to generate both a restraining force and a permanent plastic deformation.…”

Section: Introduction and State Of The Artmentioning

confidence: 99%

Multi Scale Models for Flexure Deformation in Sheet Metal Forming

Pasquale

2016

MATEC Web Conf.

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Abstract. This paper presents the application of multi scale techniques to the simulation of sheet metal forming using the one-step method. When a blank flows over the die radius, it undergoes a complex cycle of bending and unbending. First, we describe an original model for the prediction of residual plastic deformation and stresses in the blank section. This model, working on a scale about one hundred times smaller than the element size, has been implemented in SIMEX, one-step sheet metal forming simulation code. The utilisation of this multi-scale modeling technique improves greatly the accuracy of the solution. Finally, we discuss the implications of this analysis on the prediction of springback in metal forming.

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New drawbead concepts for sheet metal forming

Cited by 43 publications

References 3 publications

Numerical simulation of tribological devices used as a set of benchmarks for comparing contact algorithms

Numerical simulation of tribological devices used as a set of benchmarks for comparing contact algorithms

Analytical model for strip-drawing

Multi Scale Models for Flexure Deformation in Sheet Metal Forming

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