http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김덕회(Duck Hoi Kim),김재훈(Jae Hoon Kim),문순일(Soon Il Moon) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.4
In this study, the intrinsic static/dynamic fracture toughness of Al 7175-T74 is evaluated from the apparent static/ dynamic toughness of notched specimen. The critical average stress fracture model is suggested to establish the relationship to predict the intrinsic fracture toughness from the apparent fracture toughness of a notched specimen. The critical average stress fracture model is established using the relation between the notch root radius and the effective distance calculated by finite clement analysis. Also, effective distance is applied 10 estimate the failure criterion for the combustion pipe with notch. It is conclude that the true fracture toughness can be estimated from test results of apparent fracture toughness measured by using a notched specimen. Also, the effective distance can be used to evaluate the failure criterion of structure with notch.
변형률 에너지법을 이용한 Inconel 617의 저주기피로 수명 예측
김덕회(Duck-Hoi Kim),김기광(Ki-Gwang Kim),김재훈(Jae-Hoon Kim),이영신(Young-Shin Lee),박원식(Won-Sik Park) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.11
Low cycle fatigue tests are performed on the Inconel 617 that be used for a hot gas casing. The relation between strain energy density and numbers of cycles to failure is examined in order to predict the low cycle fatigue life of Inconel 617. The life predicted by the strain energy method is found to coincide with experimental data and results obtained from the Coffin-Manson method. Also the cyclic behavior of Inconel 617 is characterized by cyclic hardening with increasing number of cycle at room temperature.
김덕회(Duck-Hoi Kim),김기광(Gi-Gwang Kim),김재훈(Jae-Hoon Kim),안병욱(Byoung-Wook Ahn) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
To evaluate the bending fatigue strength of automotive bevel gear, fatigue test and analysis are performed. Test fixture of double tooth concept is considered to obtain the results of the reliable fatigue test. Fatigue life of automotive bevel gear is evaluated by Weibull analysis. To compare the test results and to verify the fatigue analysis procedures, fatigue analyses are carried out. Structural and fatigue analyses are performed using ABAQUS and FE-Safe codes, respectively. Fatigue analysis results show that fatigue life and crack initiation site are coincided with test results and then fatigue analysis procedures are verified. And, fatigue analysis for random loading is performed.
정성환,김덕회,정진세,양계형,이흥영,Chung Sung-Hwan,Kim Duck-Hoi,Jung Jin-Se,Yang Ke-Hyung,Lee Heung-Young 한국방사성폐기물학회 2005 방사성폐기물학회지 Vol.3 No.3
HIC transport packaging to transport a high integrity container(HIC) containing dry spent resin generated from nuclear power plants is to comply with the regulatory requirements of Korea and IAEA for Type B packaging due to the high radioactivity of the content, and to maintain the structural integrity under normal and accident conditions. It must withstand 9 m free drop impact onto an unyielding surface and 1 m drop impact onto a mild steel bar in a position causing maximum damage. For the conceptual design of a cylindrical HIC transport package, three dimensional dynamic structural analysis to ensure that the integrity of the package is maintained under all credible loads for 9 m free drop and 1 m puncture conditions were carried out using ABAQUS code.
월성 사용후핵연료 이송플라스크 구조보완물의 낙하충격해석
정성환(Sung-Hwan Chung),김덕회(Duck-Hoi Kim),정진세(Jin-Se Chung),최병일(Byoung-Il Choi),이흥영(Heung-Young Lee),김승중(Seung-Jong Kim),이영신(Young-Shin Lee) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.10
Free drop analysis is carried out to evaluate the structural performance of the FBTF(Fuel Basket Transfer Flask) with th supplementary structure which meets the minimal structural integrity to the transport of the FBTF in accordance with the special approval arrangement of the Korea Atomic Energy Act using ABAQUS /Explicit code. Free drops of the FBTF with the supplementary structure to five directions from the maximum handling height of 1.6 m are considered. When inner shell of the FBTF is considered containment boundary, the FBTF with the supplementary structure maintains the structural integrity. Deformation of lead in the FBTF are very small, the effect of radiation shielding is not reduced. It is concluded that the supplementary structure for the FBTF is designed to satisfy special arrangement of Korea Atomic Energy Act.