Intra-Ball and Inter-Ball Variability of Ring Crack Initiation Load of Silicon Nitride Bearing Balls

• ICHIKAWA Masahiro

  The University of Electro-Communications

• TAKAMATSU Tohru

  The University of Electro-Communications

• MATSUO Takashi

  Graduate School of the University of Electro-Communications

• OKABE Nagatoshi

  Toshiba Corporation

• ABE Yutaka

  Toshiba Corporation

抄録

When the ring crack initiation load P_R of ceramic bearing balls is measured at one position per ball, P_R shows considerable scatter as shown in a previous paper. In order to clarify which of the inter-ball variability and the inter-ball variability is responsible for this scatter, a new type of test was carried out in the present study on HIP-Si_3N_4 bearing balls in which P_R was measured at 8 positions per ball. Initiation of a ring crack was detected using acoustic emission (AE). From analysis of variance, it was shown that the scatter of P_R observed when measuring P_R at one position per ball was mainly due to the intra-ball variability or the spatial variation of P_R within one ball.

収録刊行物

• JSME international journal. Ser. A, Mechanics and material engineering

  JSME international journal. Ser. A, Mechanics and material engineering 38 (2), 231-235, 1995-04-01

  一般社団法人日本機械学会

キーワード

• Ceramics
• Probabilistic Method
• Reliability
• Ceramic Bearing Ball
• Static Load Rating
• Ring Crack
• Silicon Nitride

詳細情報

• CRID: 1571980077087387648
• NII論文ID: 110002964374
• NII書誌ID: AA10888746
• ISSN: 09148809
• 本文言語コード: en
• データソース種別:
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