VALIDATION OF DERIVED EQUATION USING ENERGY TECHNIQUE FOR CALCULATING THE CRITICAL BUCKLING LOAD FOR INTERMEDIATE AND LONG COLUMNS

Authors

  • Ahmed Naif Al-Khazaraji Department of Mechanical Engineering, University of Technology, Baghdad, Iraq. Author
  • Samir Ali Al-Rabii Department of Mechanical Engineering, University of Technology, Baghdad, Iraq. Author
  • Hameed Shamkhi Al-Khazaali Department of Machines and Equipment, Institute of Technology, Middle Technical University, Baghdad, Iraq Author

Keywords:

buckling load, columns, dummy load method, energy technique

Abstract

A new equation  has  been  derived  using  energy  technique  (dummy  load  method)  to describe the buckling behavior of intermediate and long columns under dynamic buckling loads compression load and  under  dynamic  combined  load  with  consider  of  the  initial  imperfections  of  the  columns  and  the effect  of  eccentricity.  The  results  of  this  equation  are  compared  with  the  experimentally  results  of  40 specimens of AISI 303 stainless steel intermediate and long columns tested under dynamic compression loading  (compression  and  torsion)  and  under  dynamic  combined  loading  (compression,  bending,  and torsion) by using a rotating buckling test machine, and it be found that the derived equation may be used to predict of the theoretical critical buckling load Pcr under both dynamic compression and combined load with maximum percentage error is 19.3% and 16.8%, respectively.

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Key Dates

Published

2016-07-01

Issue

Vol. 20 No. 4 (2016): Journal of Engineering and Sustainable Development

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The Journal of Engineering and Sustainable Development is an open-access journal that all contents are free of charge. Articles of this journal are licensed under the terms of the Creative Commons Attribution International Public License CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/legalcode) that licensees are unrestrictly allowed to search, download, share, distribute, print, or link to the full texts of the articles, crawl them for indexing and reproduce any medium of the articles provided that they give the author(s) proper credits (citation). The journal allows the author(s) to retain the copyright of their published article.
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How to Cite

VALIDATION OF DERIVED EQUATION USING ENERGY TECHNIQUE FOR CALCULATING THE CRITICAL BUCKLING LOAD FOR INTERMEDIATE AND LONG COLUMNS. (2016). Journal of Engineering and Sustainable Development, 20(4), 217-237. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/608

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