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치주인대의 비선형 거동을 고려한 하악 견치의 유한요소해석
양훈철(HoonChul Yang),김기태(KiTae Kim),하만희(ManHee Ha),손우성(WooSung Son) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.4
Hyperelastic constitutive equations for nonlinear deformation of the periodontal ligament were<br/> investigated. The parameters in the strain energy potentials were obtained from experimental data for uniaxial<br/> and shear responses of the human periodontal ligament. The hyperelastic constitutive equations based on two<br/> strain energy potentials was also compared with the linear elastic equation, which is recently reported. The<br/> best fitted parameters in the strain energy potentials was applied to finite element program (ABAQUS) to<br/> simulate special orthodontic treatment of a mandibular canine.
양훈철(HoonChul Yang),손순일(SoonIl Son),최아름(AhReum Choi),Ahmed Sarfaraz,정승(Seung Jeong),황현주(HyunJoo Hwang),이나라(NaLa Lee) 대한기계학회 2012 대한기계학회 춘추학술대회 Vol.2012 No.11
Fire resistant cables usually apply to emergency power and fire safety systems, such as fire alarm, sprinkler, smoke ventilation system and so on. And, high performance of fire resistant cables is important to provide the safety environmental sustainability needed to electrical circuits in oil and gas plants. Recently, various fire resistant cables of LS cable & System were developed. This paper presents experimental investigations and results for continuous operation for a certain time under fire explosion condition. To obtain fire and heat resistant material properties of the cable, a specific resistant layer between the metal conductor and the polymer insulation was introduced. The developed fire resistant cables meet the requirement of various safe circuit integrities with the mechanical impact and the water spray condition for application of onshore and offshore plants.
양훈철(HoonChul Yang),김태성(TaeSeong Kim),권양미(YangMi Kwon),김원배(WonBae Kim),김태경(TaeKyung Kim),손민(Min Son) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
In cable industry, tube and sheath design of the fiber optic cable are important to provide the mechanical, thermal and environmental robustness needed to optical performance in rugged aerial and underground applications. To reduce the size, weight and manufacturing cost of these cables, however, the increase of fiber density and the miniaturization of the cable were needed. The finite element analysis is a very useful tool to accomplish this goal. This paper discusses the various mechanical design consideration and the different steps of development that led to a size-reduced loose tube optic cable with performance comparable to the lager cable.
온간 성형 하에서 A1 합금 분말의 정밀정형에 대한 유한요소해석
김기태(KiTae Kim),양훈철(HoonChul Yang),김종광(JongKwang Kim) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.4
A finite element analysis for near-net-shape forming of Al6061 powder was performed under warm<br/> pressing. The advantages of warm compaction by rubber isostatic pressing were discussed to obtain parts with<br/> better density distributions. To simulate densification and deformed shape of a powder compact during warm<br/> pressing, the elastoplastic constitutive equation based on yield function of Shima-Oyane was implemented<br/> into a finite element program(ABAQUS). The hyperelastic constitutive equation based on the Ogden strain<br/> energy potential was employed to analyze nonlinear elastic response of rubber. Finite element results were<br/> compared with experimental data for Al6061 powder compacts under warm pressing.