Study of Energy Ebsorption of Crushing Element in ER24PC Locomotive

علوم کاربردی و محاسباتی در مکانیک

Article 1, Volume 27, Issue 1 - Serial Number 13, March 2016, Pages 1-18   

Document Type: Original Article

DOI: 10.22067/fum-mech.v27i1.35446

Authors

Parisa Hosseini Tehrani; iman ferestade^*

Iran University of Science and Technology

Abstract

In most engineering structures the energy absorption systems are used to prevent or reduce damages. In this paper, performance of a crushing element of ER24PC locomotive is investigated. The numerical modeling of this crushing element, after introducing its operation, is performed using the Abaqus finite element software in order to evaluate its crushing characteristics. Since the shape of crushing element of ER24PC locomotive is tapered, an analytical solution has been used to validate the numerical results. Because of the thickness of crushing element, rupture may be occur in this element and using of a proper damage model is essential in order to simulate this rupture. From three damage models introduced in this paper, one damage model is already provided in Abaqus and the other two models have been coded. By comparing numerical results with experimental test results, proper damage model in software is developed and used in order to properly simulate the crashing process of considered element. The desirable damage model is verified by using ECE R66 standard. Finally in order to improve the energy absorption capacity metallic foam is used as a filler in energy absorber element. Through comparing the energy absorption behavior of foam filled crushing element with the non-filled element the foam performance in crushing element is evaluated.

Keywords

Energy absorber; crushing element; damage model

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