Variation in Plastic Strain Range of Metals During Fatigue Based on Logistic Analysis

• HATTORI Shuji

  Department of Mechanical Engineering, University of Fukui

• ITOH Takamoto

  Department of Mechanical Engineering, University of Fukui

• GOTOH Mitsuaki

  (株) 松浦機械製作所

Bibliographic Information

Other Title

• ロジスティック解析に基づく金属材料の高サイクル疲労過程中に生じる塑性ひずみ幅の変化
• ロジスティック カイセキ ニ モトヅク キンゾク ザイリョウ ノ コウサイクル ヒロウ カテイ チュウ ニ ショウジル ソセイヒズミ ハバ ノ ヘンカ

Abstract

The plastic strain range of stress-strain curve during fatigue process was measured for an annealed and rolled carbon steel S 45 C, SUS 304, aluminum, and copper alloys. The plastic strain range was evaluated from the movable dislocation density. It was found that the variation in movable dislocation density was expressed as a function of the number of stress cycles by the logistic curve based on the multiplication and annihilation processes of dislocations. It was concluded that the logistic curve is able to calculate the variation in plastic strain range and also the cumulative damage by taking into account the incubation period of cumulative in dislocation in the initial stage.

Journal

• TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A

  TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 70 (697), 1326-1331, 2004

  The Japan Society of Mechanical Engineers

Keywords

• Fatigue
• Iron and Steel
• Nonferrous Metal
• Dislocation
• Plasticity
• Cyclic Deformation
• Logistic Curve

Details

• CRID: 1390001204477662464
• NII Article ID: 110004998836
• NII Book ID: AN0018742X
• DOI: 10.1299/kikaia.70.1326
• COI: 1:CAS:528:DC%2BD2cXhtVegsLvM
• ISSN: 18848338
• ISSN: 03875008
• NDL BIB ID: 7099635
• Web Site: http://id.ndl.go.jp/bib/7099635
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7099635
• Web Site: http://www.jstage.jst.go.jp/article/kikaia1979/70/697/70_697_1326/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed