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Title :鉄道用バラスト材の繰り返し変形解析のための時間域均質化法定式化
Title alternative :Formulation of Time-domain Homogenization Method for Cyclic Deformation Analysis of Railway Ballast
Authors :紅露, 一寛
嘉数, 東陽
阿部, 和久
Publisher :土木学会
Issue Date :Aug-2008
Journal Title :応用力学論文集
Volume :11
Start Page :149
End Page :158
ISSN :1345-9139
Abstract :The time-domain homogenization method for hypoplastic elastoplastic model is formulated for cyclic defor-mation analysis of railway ballast, and its numerical algorithm for stress analysis is developed. The multiple temporal scales of the stress, strain and void ratio are introduced, and the original constitutive equations are decomposed into coupled micro-chronological and macro-chronological equations using asymptotic anal-ysis. Accuracy of the simulated macro-chronological strain, corresponds to the accumulated permanent strain induced by cyclic loading, depends on the approximation of the time derivatives of temporal averages of micro-chronological response.
Keywords :railway ballast
hypoplastic model
cyclic loading
time-domain homogenization method
Type Local :学術雑誌論文
Language :jpn
Format :application/pdf
URI :http://hdl.handle.net/10191/24747
fullTextURL :http://dspace.lib.niigata-u.ac.jp/dspace/bitstream/10191/24747/1/11_149-158.pdf
Relation :https://www.jstage.jst.go.jp/article/journalam1998/11/0/11_0_149/_pdf
Rights :公益社団法人土木学会
本文データは学協会の許諾に基づきJ-Stageから複製したものである
Appears in Collections:10 査読済論文 = Postprint

Please use this identifier to cite or link to this item: http://hdl.handle.net/10191/24747