Numerical simulation for underground explosion problem and dynamic characteristics of Okinawa's unique soil
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- UEHARA Syotaro
- National Institute of Technology, Okinawa College
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- HIGA Yoshikazu
- National Institute of Technology, Okinawa College
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- IYAMA Hirofumi
- National Institute of Technology, Kumamoto College
Bibliographic Information
- Other Title
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- 沖縄県固有土壌の動特性評価と土中爆発問題の数値シミュレーション
Abstract
<p>In this paper, dynamic characteristics of Shimajiri Mahji that is a unique soil to Okinawa's main island, were clarified by visualization experiments with ultrahigh-speed camera on the plane wave generated by detonation and the interaction field at the target soil interface. Next, numerical simulation of the detonation experiment using commercial finite element analysis software was carried out and the validity of the soil dynamic characteristics clarified from the experiment was confirmed. Furthermore, in order to clarify the fragment behavior when explosive the unexploded bombs, we have constructed the simple numerical simulation models for soil surface and underground explosion problems by SPH scheme. From the series of computational results, we have confirmed the fragment behaviors is significantly dependent on the explosive amounts and the depth buried of unexploded bomb.</p>
Journal
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- The Proceedings of The Computational Mechanics Conference
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The Proceedings of The Computational Mechanics Conference 2018.31 (0), 186-, 2018
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1390845713069384064
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- NII Article ID
- 130007653705
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- ISSN
- 24242799
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed