Measurements of Distributions of Contact Pressures between Ground Surfaces Using PET Films

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概要

• 論文の詳細を見る

• A method for measuring a distribution of contact pressures between ground surfaces using a thin PET, polyethylene terephthalate, film of 0.9 μm thickness has been developed. Punch specimens were made of carbon steel, S45C, and their ends were ground. The PET film was inserted between ground surfaces of the punch specimens and pressed at a given pressure for one minute. The PET film was indented by surface asperities on the ground surfaces at real contact points. Thus if the relationship between the areas of the indented parts and the applied pressures were known, the contact pressures could be determined by measuring the indented areas of the PET film. The indented areas of the PET films were proportional to the applied pressures in the range of zero to 300 MPa. These areas were measured automatically by image processing through an optical microscope which was modified so that its stage was controlled by a microcomputer. The apparent contact area was divided into many small portions with areas of about 0.017 mm^2 and the contact pressure was determined in each portion. The measured distributions of contact pressures for circular and square punches were compared with the calculated ones. They were in relatively good agreement with each other.

• 一般社団法人日本機械学会の論文
• 1996-09-15

著者

• Nitta Isami

  Mechanical Engineering Faculty Of Engineering Niigata University

• Jozawa Takeshi

  Oguni Plant, Toshiba Ceramics Corp

関連論文

• The Fitting Strength between Ceramic and Metal with the Use of a Bimetal Shrink Fitter at Elevated Temperature
• Shrink Fit between a Ceramic and a Metal Element Using a Hybrid Shrink Fitter : Measurements of Fitting Strengths
• Study of the Fitting Strength Between Ceramic and Metal Elements with the Use of a Shrink Fitter at Elevated Temperature : Proposal of the Shrink-Fit Method with the Use of a Shrink Fitter and Experimental Results
• Measurements of Distributions of Contact Pressures between Ground Surfaces Using PET Films

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