A Study on Dynamic Characteristics of Hyper-Elastic Shock Programmer with Truncated Conical Shape

Abstract:

Polyurethane (PU) S80A was used as the material of the elastomer of the shock programmer in this paper. To validate Ogden hyper-elastic material model in simulation, the small impact test was performed. As the comparison for the time history of the acceleration between the impact test and simulation was performed. Using the cylindrical shock programmer, the constant used in Ogden hyper-elastic material model was calculated. The wave shape of the acceleration was obtained with the noised sign. To clearly obtain the wave shape of the acceleration the cylindrical shock programmer, the truncated conical shock programmer was used. Using the Ogden hyper-elastic material model, design variables of the shock programmer with the truncated conical shape was studied. Using the shock programmer with truncated conical shape the range on the level and time duration of the acceleration in simulation was from 494.9 m/s² to 10941 m/s² and from 1.3 msec to 23.5 msec, respectively.

• Periodical: Advanced Materials Research (Volume 871)
• Pages: 240-246
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.871.240
• Online since: December 2013
• Authors: Tae Ho Yang, Young Shin Lee*, Yoon Jae Kim, Tae Hyeong Kim, Chang Won Shul, Myung Seog Yang, Chae Hun An, Gyu Sub Lee
• Keywords: Acceleration Level, Geometry, Hyper-Elastic Shock Programmer, Impact Test, Polyurethane, Time Duration

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