NDLI: Structure realization method for collapse threshold of plastic deformation in train collision condition

Content Provider	Springer Nature Link
Author	Tian, Hong qi Gao, Guang jun Yao, Song Xu, Ping Liu, Hui
Copyright Year	2011
Abstract	To protect passengers, absorb enough kinetic energy and meet the special requirements for trains which are different from the other means of transportation, a method is presented to realize the plastic deformation threshold based on three main aspects of train connection structure, crashworthy vehicle structure, energy-absorbing component. In practical engineering, trains need enough strength and stiffness to transfer longitudinal force under the normal operation condition, and have to produce controllable large plastic deformation to absorb energy shortly under the collision condition. To realize the structural damage threshold of connecting structure in terminal end, two control methods are also proposed which can be divided as the parametric method based on ‘extrusion’ and ‘cutting’ theories; the method which can cut the connecting components between coupler-buffer devices and train bodies and separate them away when the damage thresholds of coupler-buffer devices are more than the pre-supposed damage thresholds. The damage thresholds can be realized based on changing the parameters of the number of shearing bolts, material parameters, etc. To realize the collision threshold of energy-absorbing components of trains, a control method is presented based on the ways of setting plastic deformation induced structure, local hole and pre-deformation structure. To realize the threshold of the controllable plastic structure of energy-absorbing vehicles, a control method is proposed for the multi-level longitudinal stiffness of train terminal structures.
Starting Page	244
Ending Page	249
Page Count	6
File Format	PDF
ISSN	10059784
Journal	Journal of Central South University of Technology
Volume Number	18
Issue Number	1
e-ISSN	19930666
Language	English
Publisher	Central South University
Publisher Date	2011-02-04
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	damage threshold train crashworthiness plastic deformation energy-absorbing structure Metallic Materials Engineering
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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