Premium
50.2: Identify the Failure Criteria of Touch Panel Glass in Ball‐Drop Test
Author(s) -
Dai WeiTing,
Lin MaoHsing,
Huang KunFeng
Publication year - 2012
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/j.2168-0159.2012.tb05871.x
Subject(s) - drop test , ball (mathematics) , reliability engineering , singularity , computer science , drop (telecommunication) , structural engineering , engineering , mechanical engineering , mathematics , mathematical analysis
The ball‐drop impact test is frequently used to evaluate the reliability in handheld display products. The finite element analysis provides a convenient way to show kinds of quantitative index to verify the product quality, but the result shows singularly that might affect the failure criteria in glass strength. The stress value at impacted point is too high, due to singularity, to be true and finds out the effective way to confirm is not an easy task in this kind of experiment. This article figures out another quantitative and suitable approach to redefine the criteria of glass failure. The energy approach could be used as an evaluated method and rupture energy from test should be identified for glass to be judged as failure criteria.