Overview of Simplified Methods and Research for Blast Analysis
Overview of Simplified Methods and Research for Blast Analysis
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DOI：
10.1061/40700(2004)155
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发表时间：
2004-05
期刊：
影响因子：
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通讯作者：
D. Sunshine;A. Amini;M. Swanson
中科院分区：
文献类型：
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作者：
D. Sunshine;A. Amini;M. Swanson
最近对建筑物的恐怖主义炸弹袭击使人们更加关心保护重要建筑物。各种研究计划提供了改进的设计和分析技术以及新的缓解方法。先进的有限元方法提供了最好的分析结果，因为它们可以考虑时变载荷、动态结构响应、非线性材料特性以及各种响应模式的非线性相互作用（例如，剪切和弯曲）。这些方法不仅需要时间，而且需要专门知识才能获得良好的效果。因此，它们对于典型的爆破设计问题通常是不实用的。简化方法可以提供合理的近似值，足以用于设计。存在各种类型的简化模型。典型的模型包括单自由度或多自由度、压力-脉冲（P-I）图和从有限元分析开发的响应面。本文介绍了一些最近发展的简化模型和相关的研究。
Recent terrorist bomb attacks on buildings have resulted in increased interest in the protection of key buildings. Various research programs have provided improved design and analysis techniques as well as new mitigation methods. Advanced finite element methods provide the best analytical results because they can take into account the time varying load, dynamic structural response, non-liner material properties, and the non-linear interaction of various response modes (e.g., shear and flexure). These methods require not only time but also specialized expertise to obtain good results. They are therefore generally unpractical for typical blast design problems. Simplified methods can provide reasonable approximations that are adequate for design. A variety of types of simplified models exist. Typical models include single or multi-degree-of-freedom, pressure-impulse (P-I) diagrams, and response surfaces developed from finite element analyses. This paper describes some recently developed simplified models and associated research.