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A Study on High Temperature Fatigue Strength of Plasma-Sprayed Notched Members by Using Laser Speckle Measurement

Research Project

Project/Area Number 10650089
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Materials/Mechanics of materials
Research InstitutionOsaka University

Principal Investigator

NISHIKAWA Izuru  Graduate School of Engineering Science, Osaka university Associate Professor, 基礎工学研究科, 助教授 (90189267)

Co-Investigator(Kenkyū-buntansha) KIDA Katsuyuki  Graduate School of Engineering Science, Osaka university Research assistant, 基礎工学研究科, 助手 (00271031)
OGURA Keiji  Graduate School of Engineering Science, Osaka university, Professor, 基礎工学研究科, 教授 (70029007)
Project Period (FY) 1998 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1999: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1998: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsPlasma-Spraved / Notoh / Strain Measurement / Laser Speckle / High Temperature Fatigue / Delamination / Internal Crack / Crack Propagation / プラズマ溶射 / アルミナセラミックス / 2軸ひずみ / 疲労強度 / 表面ひずみ / き裂開口変位
Research Abstract

There are so many discontinuous parts in service machines that fatigue problems of notched member are to be solved. Metallic materials used at high temperature were applicable up to 1000degC. The special materials are needed for further high temperature usage. The ceramic-sprayed material was one of the useful materials for high temperature. The purpose of this study is to clarify the characteristics of high temperature fatigue in ceramic-sprayed materials. Specially, an emphasis was put on the fatigue properties of notched members. It was found that the notched sample with 1mm in notch root radius was manufactured for the fatigue test.
The bi-axial strain at notch root was monitored using a laser speckle strain/displacement measurement system, consequently. While the lateral strain at notch root was too small to measure, the longitudinal strain was large enough to examine the cyclic strain properties. It was found that the notch root was put on the plane strain condition and the fatigue life of notched specimen was nearly equal to the life in smooth specimen. The reason for the similarity in fatigue life was considered that notch constraint was limited to develop the strain hardening/softening behavior. From the observation of sample sections, a crack initiated at top coatings is not the same to a crack in the substrate. It was concluded that the coating material was not affected to the fatigue life of ceramic-sprayed specimen.

Report

(3 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • Research Products

    (30 results)

All Other

All Publications (30 results)

  • [Publications] 西川出,小倉敬二: "レーザスペックルによるひずみ・き裂開口変位計測"日本機械学会ウイングを拡げよう材料力学シンポジウム講演論文集. No99-4. 82-85 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 小倉敬二,西川出,脇裕之: "疲労負荷下におけるセラミックス溶射皮膜の非線形ひずみ挙動"日本材料学会第48期学術講演会講演論文集. 131-132 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 小倉敬二,西川出,田中盛彦,宮武岳洋: "窒化ケイ素セラミックスの両振りおよび片振り負荷下におけるCOD計測とき裂開口状態の観察"日本材料学会第48期学術講演会講演論文集. 123-124 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Keiji OGURA, Izuru NISHIKAWA, Hiryuki WAKI: "Development of Laser Speckle Biaxial Strain Gauge and its Applications to Notch Root Strain Measurement"Proc. Of Int. Conf. On Advanced Technology in Experimental Mechanics'99. 617-620 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 脇裕之,西井雅宏,西川出,小倉敬二: "アルミナ溶射ステンレス鋼および皮膜の高温疲労・熱疲労過程の観察"日本材料学会第10回破壊力学シンポジウム講演論文集. 148-152 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 脇裕之,西井雅宏,西川出,小倉敬二: "高温疲労下におけるアルミナ溶射ステンレス鋼のき裂およびはく離発生挙動"日本材料学会第7回機械構造物の強度設計安全性シンポジウム講演論文集. 42-45 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Keiji OGURA, Izuru NISHIKAWA, Hiroyuki WAKI: "Development of Laser Speckle Biaxial Strain Gauge and its Application to Notch Root Strain Measurement"Proc. Intern. Conference on Advanced Technology on Experimental Mechanics. JSME-MMD. 617/622 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Keiji OGURA, Izuru NISHIKAWA, Hiroyuki WAKI: "Measurement of Biaxial Notch Root Strain under Cyclic Loading Using Laser Speckle Strain/Displacement Gauge"Proc. of APCFS'99, Xi'an, People's Republic of China. (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Hiroyuki WAKI, Keiji OGURA, Izuru NISHIKAWA: "Observation of high temperature fatigue and thermal fatigue in Alumina plasma-sprayed stainless steel and sprayed film"Proc. 10th symposium on faracture mechanics. JSMS. 148/152 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Izuru NISHIKAWA, Keiji OGURA: "Measurement of Strain/Crack opening displacement Using laser speckle"Proc. of MMD symposium, JSME. 82/85 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Keiji OGURA, Izuru NISHIKAWA, Hiroyuki WAKI: "Strain measurement in Alumina plasma-sprayed specimen and film specimen using Laser speckle"Proc of JSME. No.994-1. 10-21/10-22 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Keiji OGURA, Izuru NISHIKAWA, Masahiro NISHII, Hiroyuki WAKI: "Observation of High Temperature Fatigue in Alumina plasma-sprayed stainless steel"Proc of JSME. No.994-1. 6-53/6-54 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Izuru NISHIKAWA, Hirokazu ISHIMI, Keiji OGURA: "Development of Crack opening displacement measurement system using digital image correlation method"Proc. of JSME. No.994-1. 6-41/6-42 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Hirokazu ISHIMI, Izuru NIHSIKAWA, Keiji OGURA: "Measurement on Crack opening distribution in Ceramics material using Digital image correlation method"Proc. of JSME. No.004. 9-27/9-28 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Keiji OGURA, Izuru NISHIKAWA, Masahiro NISHII, Hiroyuki WAKI: "Observation of High temperature fatigue process in Zirconia plasma-sprayed specimen"Proc. of JSME. No.004. 9-37/9-38 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Keiji OGURA, Izuru NISHIKAWA, Hiroyuki MOTOHASHI, Yasuiyuki MORI: "Crack healing effect in Silicon Nitride Ceramics by compressive loading"Proc. of JSME. No.004. 9-23/9-24 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 西川 出,小倉敬二: "レーザスペックルによるひずみ・き裂開口変位計測"日本機械学会ウイングを拡げよう材料力学シンポジウム講演論文集. No.99-4. 82-85 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 小倉敬二,西川 出,脇 裕之: "疲労負荷下におけるセラミックス溶射皮膜の非線形ひずみ挙動"日本材料学会第48期学術講演会講演論文集. 131-132 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 小倉敬二,西川 出,田中盛彦,宮武岳洋: "窒化ケイ素セラミックスの両振りおよび片振り負荷下におけるCOD計測とき裂開口状態の観察"日本材料学会第48期学術講演会講演論文集. 123-124 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Keiji OGURA,Izuru NISHIKAWA,Hiroyuki WAKI: "Development of Laser Speckle Biaxial Strain Gauge and its Application to Notch Root Strain Measurement"Proc of Int. Conf on Advanced Technology in Experimental Mechanics'99. 617-620 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 脇 裕之,西井雅宏,西川 出,小倉敬二: "アルミナ溶射ステンレス鋼および皮膜の高温疲労・熱疲労過程の観察"日本材料学会第10回破壊力学シンポジウム講演論文集. 148-152 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 脇 裕之,西井雅宏,西川 出,小倉敬二: "高温疲労下におけるアルミナ溶射ステンレス鋼のき裂およびはく離発生挙動"日本材料学会第7回機械構造物の強度設計安全性シンポジウム講演論文集. 42-45 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 小倉敬二,西川 出,田中盛彦,門阪宗樹: "セラミックスき裂材のCOD計測と疲労き裂進展駆動力の検討" 日本機械学会講演論文集. No984-1. 47-48 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小倉敬二,西川 出,竹中雅彦,岡野公泰: "高温下セラミックスの疲労寿命に及ぼす荷重繰り返しの影響" 日本機械学会講演論文集. No984-1. 411-412 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小倉敬二,西川 出,門阪宗樹,田中盛彦: "アルミナおよび窒化ケイ素セラミックスの不連続的疲労き裂進展と開閉口" 日本材料学会第46期学術講演会講演論文集. 71-72 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 西川 出,小倉敬二,山田周治,坂上昌弘: "レーザースペックルプロファイルの定量解析と表面疲労損傷評価への応用" 日本材料学会第46期学術講演会講演論文集. 75-76 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小倉敬二,西川 出,田中盛彦: "レーザスペックルによる窒化ケイ素セラミックスの疲労き裂開口観察" 日本機械学会講演論文集. No98-3. 687-688 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小倉敬二,西川 出,脇 裕之: "切欠き底繰り返し2軸ひずみ状態の切欠き形状依存度の検討" 日本機械学会講演論文集. No98-5. 3-4 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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