Extensible plastic collapse of thin-wall frusta as energy absorbers

A. G. Mamalis; D. E. Manolakos; S. Saigal; G. Viegelahn; W. Johnson

doi:10.1016/0020-7403(86)90070-6

Extensible plastic collapse of thin-wall frusta as energy absorbers

A. G. Mamalis, D. E. Manolakos, S. Saigal, G. Viegelahn, W. Johnson

Research output: Contribution to journal › Article › peer-review

98 Scopus citations

Abstract

The crumpling of thin-walled frusta, under axial compression, in the 'concertina' mode is studied. The energy expended in bending at the plastic hinges and in stretching the metal between the hinges is minimized for the total decrease in height due to collapse. The thinning of the cross-section due to stretching is neglected. A theoretical model has been developed and numerical results are obtained that show the effect of slenderness, t/D, and the semi-apical angle of the frusta. Good qualitative agreement in trends is exhibited when comparison with available experimental results is made.

Original language	English (US)
Pages (from-to)	219-229
Number of pages	11
Journal	International Journal of Mechanical Sciences
Volume	28
Issue number	4
DOIs	https://doi.org/10.1016/0020-7403(86)90070-6
State	Published - 1986
Externally published	Yes

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
General Materials Science
Condensed Matter Physics
Aerospace Engineering
Ocean Engineering
Mechanics of Materials
Mechanical Engineering
Applied Mathematics

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10.1016/0020-7403(86)90070-6

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title = "Extensible plastic collapse of thin-wall frusta as energy absorbers",

abstract = "The crumpling of thin-walled frusta, under axial compression, in the 'concertina' mode is studied. The energy expended in bending at the plastic hinges and in stretching the metal between the hinges is minimized for the total decrease in height due to collapse. The thinning of the cross-section due to stretching is neglected. A theoretical model has been developed and numerical results are obtained that show the effect of slenderness, t/D, and the semi-apical angle of the frusta. Good qualitative agreement in trends is exhibited when comparison with available experimental results is made.",

author = "Mamalis, {A. G.} and Manolakos, {D. E.} and S. Saigal and G. Viegelahn and W. Johnson",

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language = "English (US)",

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pages = "219--229",

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T1 - Extensible plastic collapse of thin-wall frusta as energy absorbers

AU - Mamalis, A. G.

AU - Manolakos, D. E.

AU - Saigal, S.

AU - Viegelahn, G.

AU - Johnson, W.

PY - 1986

Y1 - 1986

N2 - The crumpling of thin-walled frusta, under axial compression, in the 'concertina' mode is studied. The energy expended in bending at the plastic hinges and in stretching the metal between the hinges is minimized for the total decrease in height due to collapse. The thinning of the cross-section due to stretching is neglected. A theoretical model has been developed and numerical results are obtained that show the effect of slenderness, t/D, and the semi-apical angle of the frusta. Good qualitative agreement in trends is exhibited when comparison with available experimental results is made.

AB - The crumpling of thin-walled frusta, under axial compression, in the 'concertina' mode is studied. The energy expended in bending at the plastic hinges and in stretching the metal between the hinges is minimized for the total decrease in height due to collapse. The thinning of the cross-section due to stretching is neglected. A theoretical model has been developed and numerical results are obtained that show the effect of slenderness, t/D, and the semi-apical angle of the frusta. Good qualitative agreement in trends is exhibited when comparison with available experimental results is made.

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EP - 229

JO - International Journal of Mechanical Sciences

JF - International Journal of Mechanical Sciences

IS - 4

ER -

Extensible plastic collapse of thin-wall frusta as energy absorbers

Abstract

All Science Journal Classification (ASJC) codes

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