Investigation and Evaluation of Fatigue Property and Damage under Non-proportional Multiaxial Variable Loading

• Project/Area Number: 15K05698
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Materials/Mechanics of materials
• Research Institution: Ritsumeikan University
• Principal Investigator: Itoh Takamoto 立命館大学, 理工学部, 教授 (40242581)
• Co-Investigator(Kenkyū-buntansha): 坂根 政男 立命館大学, 理工学部, 教授 (20111130)
• Co-Investigator(Renkei-kenkyūsha): YAMAMOTO Takaei 大分大学, 工学部, 助教 (20295166) ; Hiyoshi Noritake 大分大学, 工学部, 助教 (30342489)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 金属疲労 / 多軸負荷 / 疲労損傷 / 寿命評価 / 解析ソフト

Outline of Final Research Achievements

This study discussed the investigation of fatigue properties under non-proportional multiaxial random loadings to improve safety design and reliable maintenance for structure components and materials based on a series of the delegate’s works. Developments of damage model and design tool to evaluate state of stress and strain multiaxiality as well as damage under the loadings are also carried out.

Research Products

• [Int'l Joint Research] ＮＴＮＵ(ノルウェー)
• [Int'l Joint Research] イリノイ大学(米国)
• [Int'l Joint Research] Padua大学(イタリア)
• [Int'l Joint Research] NTNU(ノルウェー)
• [Int'l Joint Research] Padua大学(イタリア)
• [Journal Article] Evaluation of multiaxial low cycle fatigue cracks in Sn-8Zn-3Bi solder under non-proportional loading (2018)
  • Author(s): Fumio Ogawa, Takamoto Itoh, Takaei Yamamoto
  • Journal Title: International Journal of Fatigue Volume: 110 Pages: 215-224
  • DOI: 10.1016/j.ijfatigue.2018.01.021
  • Peer Reviewed
• [Journal Article] Fatigue testing and evaluation of fatigue strength under multiaxial stress state; Why do we need fatigue testing? (2018)
  • Author(s): Takamoto Itoh, Fumio Ogawa, Takahiro Morishita
  • Journal Title: MATEC Web of Conferences Volume: 159 Pages: 01050-01050
  • DOI: 10.1051/matecconf/201815901050
  • Peer Reviewed / Open Access
• [Journal Article] 非比例負荷におけるSn-8Zn-3Biはんだの多軸低サイクル疲労寿命 (2017)
  • Author(s): 伊藤隆基, 山本隆栄, 小川文男
  • Journal Title: 材料 Volume: 66 Pages: 166-172
  • NAID: 130005240472
  • Peer Reviewed
• [Journal Article] 改良9Cr-1Mo鋼のクリープ特性に及ぼす試験片寸法および酸素分圧の影響 (2017)
  • Author(s): 金山英幸, 旭吉雅健, 伊藤隆基, 小川文男,若井隆純
  • Journal Title: 材料 Volume: 66 Pages: 86-92
  • NAID: 130005240493
  • Peer Reviewed
• [Journal Article] Analysis of multiaxial low cycle fatigue of notched specimens for type 316L stainless steel under non-proportional loading (2017)
  • Author(s): P. Gallo, S. Bressan, T. Morishita, T. Itoh, F. Berto
  • Journal Title: Theor. Appl. Fract. Mech. Volume: 89 Pages: 78-89
  • DOI: 10.1016/j.tafmec.2017.01.009
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Multiaxial low cycle fatigue life of Ti-6Al-4V under non-proportional loading with mean strain (2017)
  • Author(s): Takamoto Itoh, Hiroshi Nakamura, Masahiro Takanashi, Min Wu
  • Journal Title: Theoretical and Applied Fracture Mechanics Volume: 印刷中 Pages: 165-173
  • DOI: 10.1016/j.tafmec.2017.04.004
  • Peer Reviewed
• [Journal Article] Creep Characteristic of Sn1.0Ag0.7Cu Lead-Free Solders with Element Addition (2016)
  • Author(s): Fumio Ogawa, Hiroki Nagao, Takamoto Itoh, Masao Sakane, Mitsuo Yamashita, Hiroaki Hokazono
  • Journal Title: Applied Mechanics and Materials Volume: 853 Pages: 192-196
  • DOI: 10.4028/www.scientific.net/amm.853.192
  • Peer Reviewed
• [Journal Article] Development of Bending and Torsion Fatigue Testing Machine for Multiaxial Non-Proportional Loading (2016)
  • Author(s): Takahiro Morishita, Takamoto Itoh, Masao Sakane
  • Journal Title: Applied Mechanics and Materials Volume: 853 Pages: 534-538
  • DOI: 10.4028/www.scientific.net/amm.853.534
  • Peer Reviewed
• [Journal Article] Multiaxial Fatigue Property of Ti-6Al-4V using Hollow Cylinder Specimen under Push-pull and Cyclic Inner Pressure Loading Article reference (2016)
  • Author(s): akahiro Morishita, Takamoto Itoh, Masao Sakane, Hiroshi Nakamura, Masahiro Takanashi
  • Journal Title: International Journal of Fatigue Volume: 87 Pages: 370-380
  • DOI: 10.1016/j.ijfatigue.2016.02.019
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Evaluation of multiaxial low cycle fatigue life for type 316L stainless steel notched specimen under non-proportional loading (2016)
  • Author(s): Takahiro Morishita, Takamoto Itoh
  • Journal Title: Theoretical and Applied Fracture Mechanics Volume: 未定 Pages: 8-8
  • DOI: 10.1016/j.tafmec.2016.02.007
  • Peer Reviewed
• [Journal Article] Multiaxial Fatigue Strength of Type 316 Stainless Steel under Push-pull, Reversed Torsion, Cyclic Inner and Outer Pressure Loading (2016)
  • Author(s): Takahiro Morishita, Takamoto Itoh, Zhenlong Bao
  • Journal Title: International Journal of Pressure Vessels and Piping Volume: 未定 Pages: 1-9
  • DOI: 10.1016/j.ijpvp.2016.02.024
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] 内圧および軸力を負荷した多軸応力状態における疲労寿命および強度特性評価 (2017)
  • Author(s): 高田雄大，森下高弘, 旭吉 雅健，小川文男,伊藤隆基
  • Organizer: 日本機械学会M&M2017材料力学カンファレンス
• [Presentation] 非比例多軸負荷における核融合ブランケット構造材料F82Hの繰返し変形破壊特性 (2017)
  • Author(s): 佐藤善己，村上祐也，森下高弘，谷川博康，福元 謙一，小川文男，伊藤隆基
  • Organizer: 日本機械学会M&M2017材料力学カンファレンス
• [Presentation] Multiaxial fatigue property of type 316 stainless steel using hollow cylinder specimen under combined pull loading and inner pressure (2017)
  • Author(s): Takahiro Morishita, Yuta Takada, Takamoto Itoh
  • Organizer: The Challenges in Multiaxial Fatigue Workshop
  • Int'l Joint Research
• [Presentation] Evaluation and visualization of multiaxial fatigue behavior under random non-proportional loading condition (2017)
  • Author(s): Takahiro Morishita, Fumio Ogawa, Takamoto Itoh
  • Organizer: The Challenges in Multiaxial Fatigue Workshop
  • Int'l Joint Research
• [Presentation] 多軸クリープ疲労寿命に及ぼす非比例負荷の影響 (2016)
  • Author(s): 伊藤隆基, 森下高弘
  • Organizer: 第54回高温強度シンポジウム
  • Place of Presentation: 愛媛大学南加記念ホール（愛媛県, 松山市）
  • Year and Date: 2016-12-09
• [Presentation] Purity and Grain Size Effects of Creep Characteristics of Pure Aluminum for Electric Devices (2016)
  • Author(s): Norihiko Osada, Shogo Yoshitake, Fumio Ogawa, Takamoto Itoh and Masao Sakane
  • Organizer: 9 th China-Japan Bilateral Symposium on High Temperature Strength of Materials
  • Place of Presentation: 中国・長沙
  • Year and Date: 2016-10-17
  • Int'l Joint Research
• [Presentation] Biaxial Tensile Creep Damage of Mod.9Cr-1Mo Steel Using Cruciform Specimen (2016)
  • Author(s): Ryosuke Itoh, Takumi Hikida, Fumio Ogawa, Takamoto Itoh, Masao Sakane, Shengde Zhang
  • Organizer: 9 th China-Japan Bilateral Symposium on High Temperature Strength of Materials
  • Place of Presentation: 中国・長沙
  • Year and Date: 2016-10-17
  • Int'l Joint Research
• [Presentation] Development of Miniature Fatigue Testing Machine in Liquid Conditions (2016)
  • Author(s): Taiki Sugimoto, Takamoto Itoh, Masao Sakane, Chiaki Hisaka
  • Organizer: 9 th China-Japan Bilateral Symposium on High Temperature Strength of Materials
  • Place of Presentation: 中国・長沙
  • Year and Date: 2016-10-17
  • Int'l Joint Research
• [Presentation] Low Cycle Fatigue and Creep-fatigue Test Technique Used Small Sized Specimen of Lead Free Solders (2016)
  • Author(s): Yutaka Konishi, Fumio Ogawa, Takamoto Itoh, Masao Sakane, Hideyuki
  • Organizer: 9 th China-Japan Bilateral Symposium on High Temperature Strength of Materials
  • Place of Presentation: 中国・長沙
  • Year and Date: 2016-10-17
  • Int'l Joint Research
• [Presentation] Low Cycle Fatigue Test of Lead Free Solders Using Small Sized Specimen (2016)
  • Author(s): Yutaka Konishi, Takamoto Itoh, Masao Sakane, Fumio Ogawa, Hideyuki Kanayam
  • Organizer: 4th International Conference on Small Sample Test Techniques
  • Place of Presentation: 中国・上海
  • Year and Date: 2016-10-13
  • Int'l Joint Research
• [Presentation] Development of Fatigue Testing Machine for Small Sized Specimen in Liquid Conditions (2016)
  • Author(s): Taiki Sugimoto, Takamoto Itoh, Masao Sakane, Chiaki Hisaka
  • Organizer: 4th International Conference on Small Sample Test Techniques
  • Place of Presentation: 中国・上海
  • Year and Date: 2016-10-13
  • Int'l Joint Research
• [Presentation] 繰返し内圧および引張・圧縮を負荷した多軸応力状態におけるSUS316の疲労寿命特性 (2016)
  • Author(s): 高田雄大，森下高弘，伊藤隆基
  • Organizer: 日本機械学会 M&M2016材料力学カンファレンス
  • Place of Presentation: 神戸大学六甲台第二キャンパス（兵庫県, 神戸市）
  • Year and Date: 2016-10-10
• [Presentation] 曲げ・ねじり組合せ疲労試験装置を用いたSUS304の非比例多軸高サイクル疲労寿命 (2016)
  • Author(s): 佐藤裕亮，森下高弘，伊藤隆基
  • Organizer: 日本機械学会 M&M2016材料力学カンファレンス
  • Place of Presentation: 神戸大学六甲台第二キャンパス（兵庫県, 神戸市）
  • Year and Date: 2016-10-10
• [Presentation] Biaxial and Triaxial Creep Damage Evaluation for Type 304 Stainless Steel (2016)
  • Author(s): Hiroki Kobayashi, Ryohei Ohki, Takamoto Itoh, Masao Sakane
  • Organizer: Internationa Conference on Multiaxial Fatigue & Fractre
  • Place of Presentation: Sevile, Spain
  • Year and Date: 2016-06-01
  • Int'l Joint Research
• [Presentation] Fatigue Strength of SS400 Steel under Non-proportional Loading (2016)
  • Author(s): Takahiro Morishita, Takamasa Takaoka, Takamoto Itoh
  • Organizer: Internationa Conference on Multiaxial Fatigue & Fractre
  • Place of Presentation: Sevile, Spain
  • Year and Date: 2016-06-01
  • Int'l Joint Research
• [Remarks] 立命館大学理工学部教員紹介
  • URL: http://www.ritsumei.ac.jp/se2017/educators/detail/?id=66
• [Remarks] 研究室ＨＰ
  • URL: http://www.ritsumei.ac.jp/~itohtaka/
• [Funded Workshop] Internationa Conference on Multiaxial Fatigue & Fractre (2016)
  • Place of Presentation: Sevile, Spain
  • Year and Date: 2016-06-01