Vibration resulting from high-velocity projectiles impacting a structure was simulated at multiple scales. Local impact simulations were performed to predict the material deformation and penetration phenomena at the location of impact. The resulting penetration behavior of a steel panel was analyzed for various projectile velocities, sizes, and panel thicknesses. Three-layer panels with Kevlar as the core material were simulated to understand the effects of structural layering on the reduction of the impact force. The forces acting on the panel in the longitudinal and transverse directions were calculated from the obtained stress distribution in the local deformation model. Using the estimated force input, transient longitudinal and flexural wave propagations were calculated to analyze the radiation of the impact energy along the structural span. Vulnerable positions with high possibilities of damage to crucial components due to impact loading were identified from the resulting vibration responses.
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April 2013
Research-Article
Multiscale Simulations for Impact Load–Induced Vibration: Assessing a Structure's Vulnerability
Jeongwon Park,
Jeongwon Park
Department of Mechanical Engineering
,Hanyang University
,17 Haengdang-dong
,Seongdong-gu, Seoul 133-791
, Korea
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Man Hoi Koo,
Man Hoi Koo
Agency for Defense Development
,111 Sunam dong
,Yoseong, Daejeon 305-152
, Korea
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Junhong Park
Junhong Park
e-mail: parkj@hanyang.ac.kr
Department of Mechanical Engineering
,Hanyang University
,17 Haengdang-dong
,Seongdong-gu, Seoul 133-791
, Korea
Search for other works by this author on:
Jeongwon Park
Department of Mechanical Engineering
,Hanyang University
,17 Haengdang-dong
,Seongdong-gu, Seoul 133-791
, Korea
Man Hoi Koo
Agency for Defense Development
,111 Sunam dong
,Yoseong, Daejeon 305-152
, Korea
Junhong Park
e-mail: parkj@hanyang.ac.kr
Department of Mechanical Engineering
,Hanyang University
,17 Haengdang-dong
,Seongdong-gu, Seoul 133-791
, Korea
Contributed by the Materials Division of ASME for publication in the Journal of Engineering Materials and Technology. Manuscript received June 1, 2012; final manuscript received January 4, 2013; published online March 25, 2013. Assoc. Editor: Xi Chen.
J. Eng. Mater. Technol. Apr 2013, 135(2): 021006 (7 pages)
Published Online: March 25, 2013
Article history
Received:
June 1, 2012
Revision Received:
January 4, 2013
Citation
Park, J., Koo, M. H., Kim, H., and Park, J. (March 25, 2013). "Multiscale Simulations for Impact Load–Induced Vibration: Assessing a Structure's Vulnerability." ASME. J. Eng. Mater. Technol. April 2013; 135(2): 021006. https://doi.org/10.1115/1.4023774
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