書誌事項
- タイトル別名
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- Fatigue Test Result of Large Scaled Test Piece : 1st Report, Induction Hardened Cracked Specimen
- オオガタ シケンヘン ニ ヨル ツカレ シケン ケッカ 1
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抄録
The 0.35% carbon steel specimens with crack, whose diameter is 50 mm, were made, and some of them were induction-hardened. The results of comparative tests on them show that the fatigue limit, which is only about 6 kg/mm2 in case of no heat treatment, rises nearly to 40kg/mm2 through induction-hardening. These induction-hardened specimens were rather overheated, so that the rapid heating effect could not be expected, nevertheless their fatigue limit did not remarkably fall. This is presumably due to the residual compressive stress on the surface of specimens. Strain gages were set across the crack and strain variations were measured under both compression and tension loads, respectively. When it is suspected that residual compressive stress is present, the strain is approximately equal under either load, but, when it is not, the strain becomes much larger under tension load. Such phenomenon must originate from the fact that strain at the tip of crack becomes smaller, due to the existence of residual compressive stress and seems to explain one of the main reasons for the increased fatigue limit in the above mentiones results.
収録刊行物
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- 日本機械学會論文集
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日本機械学會論文集 26 (161), 91-94, 1960
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390282680132173440
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- NII論文ID
- 110002351094
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- NII書誌ID
- AN00187419
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- ISSN
- 21859485
- 00290270
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- NDL書誌ID
- 9150499
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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
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可