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1700MPa 級超高力ボルトの量産試作およびそれを用いた 摩擦接合継手のすべり耐力

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Our research group has been developing 1,700 MPa class ultra-high-strength bolts and will try to rationalize bolted connections with the bolts. This study conducted mass production of 1,700 MPa class bolts and confirmed the tensile resistance experimentally. The slip behaviour of friction type bolted joints with them was also investigated. The mass-produced bolts demonstrated the stable tensile resistance derived from the used material. Slip test results of double-lap joints coated with inorganic zinc-rich paint found that the slip coefficient evaluated by the bolt tension before the test was larger than 0.45, and the bolt tension reduction through the slippage became less than about 3 percent.

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  • Name
    木村勇次
    Email
    Kimura.Yuuji@nims.go.jp
    Organization
    National Institute for Materials Science
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  • 27/12/2023
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  • Version of record (Published version)
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  • Funder identifier
    20246105
    Funder name
    日本学術振興会、JSPS
    Award title
    科学研究補助金基盤研究 A
    Funder identifier
    19H02468
    Funder name
    日本学術振興会、JSPS
    Award title
    科学研究補助金基盤研究B

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