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반응표면법을 이용한 커버 플라스틱 적층 구조의 내 충격 특성 평가
오현철(Hyeon-Cheol Oh),신창민(Chang-Min Shin),정누리(Nu-Ri Cheong),김근영(Keun-Young Kim),이병채(Byung-Chai Lee) (사)한국CDE학회 2013 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2013 No.1
This study aims to perform the finite element analysis for the laminated structure including cover-plastic materials and evaluate variations in impact resistance properties using the response surface methodology. Recently launched smart devices use the tempered glass as a cover, which has drawbacks such as high prices, manufacturing problems and heavy weight. Cover-plastic materials with high hardness were developed to overcome those and to carry out impact test and process design improvements are needed in order to evaluate impact resistance of the prototype when designing it using that materials. Finite element analysis with impact load was performed for the primary design variables and they were evaluated in view of the cost and the effectiveness. Also aspects of the impact resistance were analyzed by constructing the response surface model.
고경도 플라스틱 커버 패널에 대한 볼 낙하 충격 해석 및 내충격 특성 분석
신창민(Chang-Min Shin),오현철(Hyeon-Cheol Oh),김근영(Keun-Young Kim),정누리(Nu-Ri Cheong),이병채(Byung-Chai Lee) (사)한국CDE학회 2013 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2013 No.1
A cover material of the smart devices requires high impact resistances enough to protect its core modules. A tempered glass was preferred as a cover material until nowadays. Recently, various researches are done for develop high-hardness plastic as a cover material considering cost reduction, manufacturability and selfweight. In this research, the impact resistance properties of the high-hardness cover plastic are evaluated by means of the finite element analysis and the ball-drop tests. Finite element models of the ball-drop test are constructed and simulated by ABAQUS/CAE. In addition, the influences of the cover thickness and property modification on the impact resistance property were analyzed.