TECHNICAL PAPERS
Sep 1, 1997
Asymmetric-Collapse of Braced Tubes
Publication: Journal of Structural Engineering
Volume 123, Issue 9
Abstract
Braced metallic tubes are used to dissipate kinetic energy in impact attenuation devices used in transportation safety applications. It is an experimentally observed fact that these braced tubes collapse asymmetrically, even under symmetrical loading conditions. This paper examines the energy dissipation characteristics of such a tube when braced across its diameter and subjected to lateral plate loading conditions. Upperand lower-bound limit analysis approaches are used to first determine the initial asymmetric collapse load of the tube with diametrical bracing oriented perpendicular to the line of action of the loads. Then, the equivalent structure technique (EST) and finite-element program, ABAQUS, are used to determine the postcollapse characteristics of the tube. Finally, these mathematical and numerical model predictions are compared with experimental results to demonstrate the accuracy of the modeling process.
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References
1.
ABAQUS manual, version 5.3. (n.d.). Hibbitt, Karlsson & Sorensen, Inc., Pawtucket, R.I.
2.
Reddy, T. Y., Reid, S. R., Carney, J. F. III, and Veillette, J. R.(1987). “Crushing analysis of braced metal rings using the equivalent structure technique.”Int. J. Mech. Sci., 21, 655–668.
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Copyright © 1997 American Society of Civil Engineers.
History
Published online: Sep 1, 1997
Published in print: Sep 1997
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L. Wu, Member, ASCE,
Assoc. Engrg., Carpenter Wright Engrs., P.L.L.C., 1717 Church St., Nashville, TN 37203.
J. F. Carney III, Fellow, ASCE
Provost and Vice Pres. for Academic Affairs, WPI, 100 Institute Rd., Worchester, MA 01609.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.