The stabilizing effect of bending-under-tension

W.C. Emmens; A.H. van den Boogaard

doi:10.1063/1.3589742

The stabilizing effect of bending-under-tension

W.C. Emmens
, A.H. van den Boogaard

Faculty of Engineering Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

1 Citation (Scopus)

5 Downloads (Pure)

Abstract

A well know effect is that work hardening can stabilize tension processes, as can be shown by the so-called maximum force condition. It is not well known that bending-under-tension can have a similar effect, namely that it can create a situation where the tension force increases with elongation therefore stabilizing the process. This happens in situations where the bending is so severe that the fibers at the inner side are in compression. This mechanism is ex-plained. In cases where the bending radius is constant, for example determined by a tool, the created stable elongation is proportional to the thickness of the material. In cases where the radius is not constant but results from an equilibrium be-tween pulling force and bending moment the situation is more complex. The situations are analyzed by a simple model and successfully verified with experimental results.

Original language	English
Title of host publication	The 14th International Conference on Material Forming ESAFORM 2011 Proceedings
Editors	Gary Menary
Place of Publication	Belfast
Publisher	American Institute of Physics
Pages	1583-1588
ISBN (Print)	978-0-7354-0911-8
DOIs	https://doi.org/10.1063/1.3589742
Publication status	Published - 27 Apr 2011
Event	14th ESAFORM International Conference on Material Forming 2011 - Queen's University Belfast, Belfast, United Kingdom Duration: 27 Apr 2011 → 29 Apr 2011 Conference number: 14

Publication series

Name	AIP Conference Proceedings
Publisher	American Institute of Physics
Volume	1353
ISSN (Print)	0094-243X

Conference

Conference	14th ESAFORM International Conference on Material Forming 2011
Abbreviated title	ESAFORM
Country/Territory	United Kingdom
City	Belfast
Period	27/04/11 → 29/04/11

Keywords

Stretch-bending
Formability
Bending under tension
Bending

Access to Document

10.1063/1.3589742

Cite this

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title = "The stabilizing effect of bending-under-tension",

abstract = "A well know effect is that work hardening can stabilize tension processes, as can be shown by the so-called maximum force condition. It is not well known that bending-under-tension can have a similar effect, namely that it can create a situation where the tension force increases with elongation therefore stabilizing the process. This happens in situations where the bending is so severe that the fibers at the inner side are in compression. This mechanism is ex-plained. In cases where the bending radius is constant, for example determined by a tool, the created stable elongation is proportional to the thickness of the material. In cases where the radius is not constant but results from an equilibrium be-tween pulling force and bending moment the situation is more complex. The situations are analyzed by a simple model and successfully verified with experimental results.",

keywords = "Stretch-bending, Formability, Bending under tension, Bending",

author = "W.C. Emmens and \{van den Boogaard\}, A.H.",

year = "2011",

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doi = "10.1063/1.3589742",

language = "English",

isbn = "978-0-7354-0911-8",

series = "AIP Conference Proceedings",

publisher = "American Institute of Physics",

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editor = "Gary Menary",

booktitle = "The 14th International Conference on Material Forming ESAFORM 2011 Proceedings",

address = "United States",

note = "14th ESAFORM International Conference on Material Forming 2011, ESAFORM ; Conference date: 27-04-2011 Through 29-04-2011",

}

Emmens, WC & van den Boogaard, AH 2011, The stabilizing effect of bending-under-tension. in G Menary (ed.), The 14th International Conference on Material Forming ESAFORM 2011 Proceedings. AIP Conference Proceedings, vol. 1353, American Institute of Physics, Belfast, pp. 1583-1588, 14th ESAFORM International Conference on Material Forming 2011, Belfast, United Kingdom, 27/04/11. https://doi.org/10.1063/1.3589742

The stabilizing effect of bending-under-tension. / Emmens, W.C.; van den Boogaard, A.H.
The 14th International Conference on Material Forming ESAFORM 2011 Proceedings. ed. / Gary Menary. Belfast: American Institute of Physics, 2011. p. 1583-1588 (AIP Conference Proceedings; Vol. 1353).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - The stabilizing effect of bending-under-tension

AU - Emmens, W.C.

AU - van den Boogaard, A.H.

N1 - Conference code: 14

PY - 2011/4/27

Y1 - 2011/4/27

N2 - A well know effect is that work hardening can stabilize tension processes, as can be shown by the so-called maximum force condition. It is not well known that bending-under-tension can have a similar effect, namely that it can create a situation where the tension force increases with elongation therefore stabilizing the process. This happens in situations where the bending is so severe that the fibers at the inner side are in compression. This mechanism is ex-plained. In cases where the bending radius is constant, for example determined by a tool, the created stable elongation is proportional to the thickness of the material. In cases where the radius is not constant but results from an equilibrium be-tween pulling force and bending moment the situation is more complex. The situations are analyzed by a simple model and successfully verified with experimental results.

AB - A well know effect is that work hardening can stabilize tension processes, as can be shown by the so-called maximum force condition. It is not well known that bending-under-tension can have a similar effect, namely that it can create a situation where the tension force increases with elongation therefore stabilizing the process. This happens in situations where the bending is so severe that the fibers at the inner side are in compression. This mechanism is ex-plained. In cases where the bending radius is constant, for example determined by a tool, the created stable elongation is proportional to the thickness of the material. In cases where the radius is not constant but results from an equilibrium be-tween pulling force and bending moment the situation is more complex. The situations are analyzed by a simple model and successfully verified with experimental results.

KW - Stretch-bending

KW - Formability

KW - Bending under tension

KW - Bending

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DO - 10.1063/1.3589742

M3 - Conference contribution

SN - 978-0-7354-0911-8

T3 - AIP Conference Proceedings

SP - 1583

EP - 1588

BT - The 14th International Conference on Material Forming ESAFORM 2011 Proceedings

A2 - Menary, Gary

PB - American Institute of Physics

CY - Belfast

T2 - 14th ESAFORM International Conference on Material Forming 2011

Y2 - 27 April 2011 through 29 April 2011

ER -

The stabilizing effect of bending-under-tension

Abstract

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Conference

Keywords

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