자유낙하에 의한 휴대폰의 충격 해석

다국어 초록 (Multilingual Abstract)

In this study, we carried out a structural analysis for determining the stresses acting on the tempered glass of a freely falling cellular phone using ANSYS 13.0, commercial finite element code. We designed a phone heavier than any contemporary cellular phone and performed finite element analysis using the falling speed at a height of 104 cm, which is equal to of the average leg length of Koreans. By determining the maximum stress acting on the phone’s tempered glass and frame, we identified the location of large deformation. Furthermore, we evaluated the maximum/minimum equivalent stress and deformation of the reinforced glass and frame as functions of time.

참고문헌 (Reference)

1 정재학, "액정 디스플레이(LCD) 낙하 충격해석에 관한 연구" 한국정밀공학회 24 (24): 99-108, 2007

2 박한석, "내구성을 고려한 하부 컨트롤 암의 구조설계" 한국기계가공학회 8 (8): 69-75, 2009

3 강동환, "낙하충격실험을 통한 고무의 충격흡수성능과 전단계수 평가" 대한기계학회 33 (33): 321-328, 2009

4 Sung, Y. W., "Residual Stress Analysis after Impact for Auto Focusing Camera Module of Portable Electronics Devices" 174-175, 2011

5 Lee, S. M., "Impact Analysis on Auto Focusing Actuator for Cellular Camera Phone" 79-85, 2008

6 Lee, S. M., "Illustrating the Drop test of the Auto Focusing Actuator for Cellular Phone using a Finite Element Analysis" 16-21, 2007

7 Kim, J. G., "Drop/Impact Simulation and Experimental Verification of MobilePhone" 25 (25): 695-702, 2001

8 Taesung Software and Engineering Inc.., "Ansys Workbench Training Manual - WB Explicit STR" 2011

9 Park, S. H., "Analysis on the Fracture of a Panel Glass in a Liquid Crystal Display Module under Mechanical Shock" 17 (17): 76-81, 2000

10 Lee, B. H., "A Study on the Reducing Impacts Effect of Rubber in Mobile Display by using Drop Test and FE Analysis" 1277-1282, 2011

11 Kim, S. W., "A Research about Polymer Material and Process Condition for Slim Cell Phone" 727-732, 2007