Experiment Study on the Growth of Strain by Thermal Ratchet Mechanism

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概要

• 論文の詳細を見る

• There are many cases that a permanent deformations called plastic flow take place in the materials of severely heated parts of thermal engined and etc. caused by the ratcheting superposition of thermal and mechanical stress. In this paper, the ratcheting is first classified in various types of thermal load, and then, those elongation rates are theoretically analysed. Moreover, several experiments were performed in order to check whether the theoretical explanations were reasonable or not, using thin tubes which are heated rotationaly or alternatively from outside, while they are pulled in axial direction. Besides those, the existence of critical conditions for the plastic flow generation was also studied theoretically and experimentally. Recently, as ratchet problems are becoming the subject of wide interest, it is desirable that this study can be of any service to further investigations.

• 一般社団法人日本機械学会の論文

著者

• ISSHIKI Naotsugu

  Tokyo Institute of Technology

• Fujii Iwane

  Meiji University

• UMEZU Kenji

  Toshiba Electric Co.

• MORIOKA Akihiro

  Yokokawa Electric Co.

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• Heat Transfer of the Critical Air Flow in a Nozzle : 3rd Report, Study on Heat Transfer of the Critical Air Flow in a Convergent Nozzle
• Heat Transfer of the Critical Air Flow In a Nozzle : 1st Report; Numerical Study on Heat Transfer of the Critical Air Flow in a Nozzle with Parallel Walls
• Heat Transfer on Cylinder Covered with Close-fitting Fabrics : Part III, Distribution of Local Heat Transfer Coefficients
• Study on Oblique Grid Shadow Graph
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• Heat Transfer on Cylinder Covered with Close-fitting Fabrics : Part II. Heat Transfer on the Stagnation Point
• Heat Transfer on Cylinder Covered with Close-fitting Fabrics : part I, Wind Penetration through Fabrics
• Analysis of Two-Dimensional Thermoelastic Problem in Doubly-Connected Region by Physical Analogy : Thermal Stress for a Solid with Hollow Square Profile
• A Theoretical Analysis and an Analogue Test of Two-Dimensional Thermal Stress : The Case When the Temperature of Boundaries for a Rectangular Cross Sectional Solid is Suddenly Changed
• Experiment Study on the Growth of Strain by Thermal Ratchet Mechanism
• The Experimental Study of Atmospheric Stirling Engines Using Pin-Fin Arrays' Heat Exchangers

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