| Project/Area Number |
05555032
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | KYOTO UNIVERSITY |
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Principal Investigator |
OHTANI Ryuich Kyoto University, Engineering, Professor, 工学部, 教授 (50025946)
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| Co-Investigator(Kenkyū-buntansha) |
HORIKAWA Jun Shimadzu Corporation, Technical Staff, 試験計測事業部, 技術職
YASUMARU Naoki Fukui National College of Technology, Mechanical Engineering, Associate Professo, 機械工学科, 助教授 (90158006)
TANAKA Keisuke Nagoya University, Engineering, Professor, 工学部, 教授 (80026244)
TADA Naoya Kyoto University, Engineering, Research Associate, 工学部, 助手 (70243053)
KITAMURA Takayuki Kyoto University, Engineering, Associate Professo, 工学部, 助教授 (20169882)
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| Project Period (FY) |
1993 – 1994
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| Project Status |
Completed (Fiscal Year 1994)
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| Budget Amount *help |
¥13,300,000 (Direct Cost: ¥13,300,000)
Fiscal Year 1994: ¥4,300,000 (Direct Cost: ¥4,300,000)
Fiscal Year 1993: ¥9,000,000 (Direct Cost: ¥9,000,000)
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| Keywords | Thin Film / Fine Wire / Fatigue / Tensile Strength / Testing Equipment / Fracture Process / In-Situ-Observation / Scanning Electron Microscope / つかみ具 |
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| Research Abstract |
The primary purpose of this research work is to prepare a fatigue testing equipment for thin filma and fine wires. The electric chucking equipment enables ua to grip firmly the specimen and to prevent the failure at the chucking part of specimen. The electric-pneumatic servocontrolled system is applied to attain precise load control at the very light load. It can perform the fatigue tests of films with the thickness of 10-100mum and of wires with the diameter of 10-100mum. The secondary purpose is to combine the fatigue testing machine with a scanning electron microscope (SEM) in order to provide an in-situ observation of the failure process during the test. The third is to investigate the strength of thin films and thin wires using the system developed.
Tensile test and fatigue test for pure copper wire with the diameter of 70 mu m are successfully conducted and the fracture surface is examined for discussing the failure process. The tests are also carried out for pure aluminum film with the thickness of 15 mu m and the failure process is observed in-situ by means of the SEM.These experiments prove the validity of the system dsveloped.
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