Development of a high cycle fatigue testing system and its application to thin aluminum film
The principal goal of this investigation was to develop a feedback controlled high cycle fatigue testing system and to demonstrate its usefulness by acquiring a preliminary stress-life curve of an aluminum film in a very short period of time. A high cycle fatigue testing system having 2.5 N load capacities was constructed and proved reliable, stable and useful in doing long-run fatigue tests. A set of stress-life curves was collected under a mean stress level with 1.16 μm thick aluminum films under closed-loop load control. The system is compact enough to set it up on subsidiary equipment like an optical microscope. A white light interferometric microscope was utilized to observe a specimen＇s surface morphology change with fatigue cycles in-situ. The surface roughness was decreased or remained constant in the beginning but started to increase in the later stage.
Aluminum film Closed-loop control High cycle fatigue S-N curve Surface roughness
Jong-Sung Bae Chung-Seog Oh Kyoung-Seok Park Sang-Kyo Kim Hak-Joo Lee
School of Mechanical Engineering.Kumoh National Institute of Technology,Gumi.Republic of Korea Nano-Machinery Research Division,Korea Institute of Machinery and Materials.Daejeon.Republic of Kore
国际会议
The Eighth International Conference on Fundamentals of Fracture(ICFF VIII)(第八届断裂基础国际会议)
香港·广州
英文
4958-4964
2008-01-03（万方平台首次上网日期，不代表论文的发表时间）