書誌事項
- タイトル別名
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- Axial Stress Measurement of Long Welded Rails Using Acoustoelasticity
- 音弾性によるロングレールの軸応力測定(第2報)改良形装置による新敷設レールの軸応力の経月変化測定
- オンダンセイ ニ ヨル ロング レール ノ ジク オウリョク ソクテイ ダイ2ホウ カイリョウケイ ソウチ ニ ヨル シン フセツ レール ノ ジク オウリョク ノ ケイゲツ ヘンカ ソクテイ
- －第２報 改良形装置による新敷設レールの軸応力の経月変化測定－
- — The 2<SUP>nd</SUP> Report : Measurement of Monthly Variation of Axial Stress in a Newly Constructed Rail Using Advanced Equipment —
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説明
This paper is the second report on axial stress measurements of a long welded rail making use of an acoustoelasticity effect of V-reflection longitudinal waves. The cause of accuracy deterioration in the field measurement, which was a problem in the previous report, was investigated and a newly improved axial stress measurement system was developed. Axial stresses of long welded rails which were constructed in winter or in summer seasons were measured using the new system. The monthly variation of the axial stress distribution in each rail was investigated for three months. As a result, the non-destructive measurement of the rail axial stress, within a measurement error of 5 MPa in the field measurement, was achieved. It was confirmed that the long welded rails which were constructed in both seasons are now being firmly fixed by both tie and ballast in the immobility section. Furthermore, it was clearly shown that the longitudinal resistance of the ballast in the movable section is about 1/3 of that commonly believed, and that the length of the movable section is gradually extended for several months after construction.
収録刊行物
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- 非破壊検査
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非破壊検査 57 (9), 441-447, 2008
一般社団法人 日本非破壊検査協会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390282681470934016
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- NII論文ID
- 130004458096
- 10024276792
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- NII書誌ID
- AN00208370
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- NDL書誌ID
- 9632674
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- ISSN
- 03675866
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDLサーチ
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
