Comparative Study of Small Scale Soil Barrier Subjected to Air Blast Load by Using AUTODYN 2D and AUTODYN 3D

Abstract:

This paper presents the blast loading of small scale soil barrier subjected to surface burst,analysed by using AUTODYN 2D and AUTODYN 3D.Results from the AUTODYN analyses are then compared with published experimental results. Good agreements with published experimental results are obtained for numerical analysis by using AUTODYN 3D for peak pressure at the front part of the barrier. In this case study, AUTODYN 2D numerical analyses provide higher pressure readingsat about 62% and 36% differences as compared with the published experimental results for pressure measurement at the middle front and back of soil barrier surface. The discrepancy of AUTODYN2D results was due to geometric dissimilarity from the actual experimental test. For complex geometries shape of barrier, that involves different shapes and configurations, three dimensional analyses are required to accurately predict the complex reflections and interactions associated with the propagation of the blast wave.

• Periodical: Materials Science Forum (Volume 819)
• Pages: 417-422
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.819.417
• Online since: June 2015
• Authors: J. Jestin*, Ali Faisal, Ahmad Zaidi Ahmad Mujahid, Othman Mohd Zaid
• Keywords: AUTODYN 2D, AUTODYN 3D, Comparative Study, Peak Pressure, Soil Barrier

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