유한요소법을 이용한 박막이 있는 물체의 응력파해석 = Stress Wave Analysis of an Object Having Coating Layer Using Finite Element Method

다국어 초록 (Multilingual Abstract)

Generally, as objects impact each other, coating layer is regarded as little affecting transmission and reflection of shock wave. However, we thought that material properties and thickness of coating layer would actually affect objects. So this paper was performed by finite element analysis (FEA) for transmission and reflection of stress wave propagation at two bars having different material properties. Also, as coating layer having different material properties was inserted between bars, we looked into the behavior of stress wave propagation and compared the result of FEA and theoretical result. As using them, FEA for actual piezo electric ceramic was performed. The damaged cause of piezo electric ceramic was confirmed by the effect of reflected wave. To decrease the effect of reflected wave, we analyzed it as changing thickness and material of coating layer and the shape of piezo electric ceramic. Afterwards, we inquired thickness and material of coating layer and the shape of piezo electric ceramic being able to minimize the effect of reflected wave.
(Receivad September 30 2004)

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 유한길이를 가진 봉에서의 응력파 이론
• 3. 유한 요소법을 이용한 충격을 받는 유한 탄성봉 해석
• 4. 결론
• REFERENCES