On the Steady-State Creep of Rotating Solid Disks

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  • 中実回転円板の定常クリープ
  • チュウ ジツ カイテン エンバン ノ テイジョウ クリープ

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Abstract

Many papers on the creep analysis of rotating disks have been published, and most of them are applied to the disks under special conditions of constant thickness and constant temperature. Experimental papers are quite small in number. The analytical and experimental studies are described in this paper. By the analytical method the steady-state creep deformations and stresses in the disks with variable thickness and variable temperature are calculated with easy numerical computations. Creep tests of rotating solid disks of forged 18-8 Mo stainless steel were carried out by means of the hot-spin tester prepared by the author and his collaborators. At the same time, specimens were cut out from the various parts of the disks and put to creep tests and other material tests. The analytical results were compared with experimental ones. Mises criterion has given the better agreement with the test data.

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