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Assessment of Impact Resistance Performance of Post-tensioned Curved Wall using Numerical Impact Analysis
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 Title & Authors
Assessment of Impact Resistance Performance of Post-tensioned Curved Wall using Numerical Impact Analysis
Chung, Chul-Hun; Lee, Jungwhee; Jung, Raeyoung; Yu, Tae-Yong;
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 Abstract
In this study, the effect of wall curvature and post-tension force on impact resistance is evaluated by numerical analysis method. A total of twelve cases with two parameters such as wall shape of flat and curved, and consideration of post-tensioning force were included in this study. A 3D detailed finite element model of commercial passenger plane engine is utilized as projectile. The depths of penetration and central displacement calculated from the numerical simulations were compared and analysed. As the results of the numerical simulations of this study, penetration depth was reduced approximately 60~80% due to the application of post-tension force, but the decrease of maximum central displacement was not remarkable. Also, the effect of curvature was relatively insignificant.
 Keywords
impact resistance;impact analysis;curvature;post-tension;penetration depth;maximum displacement;
 Language
Korean
 Cited by
 References
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