Paper Titles
Failure Analysis of Heterogeneous Microstructures in Ti-6Al-4V Alloy Using Probability Functions
p.1852
Creep Life Evaluation by Micro-Cavities
p.1858
The Random Effects of the Seepage Field on the Slope Reliability
p.1864
A Study on Procedures of the Accelerated Life Testing for Hose Assemblies
p.1870
Safety Diagnosis of Collided Subway Electric Multiple Units (EMUs)
p.1876
Barrier Function Method in Reliability Based Design Optimization
p.1882
Effect of Shock Wave on Reliability of Buried Pipelines
p.1888
Reliability Optimum Design of NWG-Type Oil-Submerged Planetary Gear Reducer
p.1895
Structural Topology Design Considering Reliability
p.1901

Safety Diagnosis of Collided Subway Electric Multiple Units (EMUs)

Article Preview

Abstract:

Engineering safety diagnosis of collided subway electric multiple units (EMUs) was conducted for safety assessment. Several advanced engineering analysis techniques including nondestructive evaluation (NDE) techniques and stress and structural analyses programs, were performed for better understandings and exploration of failure analysis and safety concerns. NDE techniques such as ultrasonic testing and magnetic particle testing, were used to detect manufactureinduced and/or in-service defects and collision-induced flaws, and measure the dimensions of deformed and non-deformed parts on damaged EMUs due to a rear-end collision. Moreover, stress and structural analyses using commercial I-DEAS software provided important information on stress distribution and load transfer mechanisms as well as the amount of damages during the crash. A good agreement has been found between structural analysis results and the results of actual damages in EMUs during crash. In this investigation, various advanced engineering analysis techniques for the safety analysis of subway EMUs have been introduced and the analysis results have been used to rovide the critical information for the safety assessment of collided EMUs.

You might also be interested in these eBooks
Advances in Fracture and Strength View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 297-300)

Pages:

1876-1881

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.297-300.1876

Citation:

Cite this paper

Online since:

November 2005

Authors:

Jong Duk Chung, Jeong Guk Kim, Dae Sung Bae

Keywords:

Electric Multiple Units (EMUs), Non-Destructive Evaluation (NDE), Safety Diagnosis, Structural Analysis

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2005 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] J.D. Chung, et al.: An interim report on precision diagnosis of railroad EMUs (in Korean) (Korea Railroad Research Institute, December 2002).

Google Scholar

[2] A report on management of Bogie life for subway EMU (in Korean) (Korea Machinery Research Institute, March 1999).

Google Scholar

[3] Safety diagnosis of Seoul subway system (in Korean) (Seoul Metropolitan Subway Corporation, October 1995).

Google Scholar

[4] J. Kim, et al.: Maintenance And Reliability CONference (MARCON) 2004, MARCON 2004 Proceedings (a CD), (2004).

Google Scholar

[5] ASM Handbook, Vol. 17, Nondestructive Evaluation and Quality Control (ASM International, 1992).

Google Scholar

[6] S. Ness and C.N. Sherlock: Nondestructive Testing Handbook, second ed. Vol. 10, Nondestructive Testing Overview (Technical eds., P.O. Moore and P. M. McIntire, eds. ) (American Society for Nondestructive Testing, Inc., 1996).

DOI: 10.1108/acmm.2003.12850dae.001

Google Scholar

[7] Joseph L. Rose: Ultrasonic Waves in Solid Media (Pennsylvania State University, 1999).

Google Scholar

[8] V. Esslinger, et al.: Engr. Failure Analysis Vol. 11 (2004), p.515.

Google Scholar