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Structural Safety Evaluation of the Hybrid Composite Bodyshell for Korean Tilting Train by a Whole Body Test

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Abstract:

This paper explains the structural safety evaluation of a hybrid composite train carbody. The composite carbody with length of 23m was manufactured as a sandwich structure composed of a 40mm-thick aluminum honeycomb core and 5mm-thick woven fabric CF1263 carbon/epoxy face. In order to evaluate the structural safety of it, the dynamic force of ±0.2g was applied to the full weight carbody by two 50-ton capacity hydraulic actuators. The excitation frequency was determined by the first bending natural frequency evaluation test under full weight condition. The test was conducted for 2x106cycles. During the test, the nondestructive tests using X-ray for the composite body structure and liquid penetrant test for the welding region of the steel underframe were performed.

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Periodical:

Key Engineering Materials (Volumes 334-335)

Pages:

313-316

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.334-335.313

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Online since:

March 2007

Authors:

Jung Seok Kim, Jong Cheol Jeong, Sang Jin Lee, Se Hyun Cho, Sung Ho Yoon, Seong Ho Han, Sung Il Seo

Keywords:

Composite Material, Fatigue Test, Structural Safety, Tilting Train

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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