Journal
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
Volume 107, Issue -, Pages 58-68Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijmecsci.2016.01.003
Keywords
Crush resistance; Corner element; Square tube; Energy absorption; Experiment
Categories
Funding
- National Natural Science Foundation of China [11372115, 11502117]
- Natural Science Foundation of Hubei Province [2013CFA130]
- Fundamental Research Funds for the Central Universities, HUST [2015MS069]
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The crush resistance of corner elements with various thickness configurations is investigated in this paper. Experimental study and numerical analyses are performed for square tubes with uniform and nonuniform wall thickness. The variation of wall thickness is found to have great influence on both deformation mode and force responses of the tubes. Two theoretical methods are proposed to predict the mean crushing force of the corner elements with nonuniform wall thickness. One is based on data fitting with average wall thickness and another is a newly proposed analytical model. Both methods can give satisfactory predictions for crush resistance of corner elements developing inextensional mode. (C) 2016 Elsevier Ltd. All rights reserved.
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