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首页> 外文期刊>Journal of Civil Engineering and Science >Post-Failure Analysis of the Glazing Systems Subjected to Air Blast
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Post-Failure Analysis of the Glazing Systems Subjected to Air Blast

机译：喷砂玻璃系统的失效后分析

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Glass fragments are a prime source of injury to the occupants of buildings during an explosion. Therefore, a better understanding of the post-failure response to these glass panels to the various glazing system parameters and blast load characteristics is an important step in mitigating the blast-related glass fragments injuries. A successful blast-resistant glazing design requires balancing of the safety and security of the window panels with physical appearance and cost-effectiveness to provide a reasonable degree of protection against explosive threats.In this paper, the blast-induced properties of glass fragments for the proposed glazing systems are calculated by application of the Simplified Techniques, Empirical Approaches and the Explicit Finite Element Simulations in order to find the post-failure characteristics of the flying glass debris including the fragment flying velocities; number of generated fragments and their flying distances. The results of the hazard level assessment indicate that for conventional glazing systems, the glass debris characteristics (velocities; distances and fragment numbers) will be consistent through the application of the Simplified, Empirical and Finite Element Methods. Although Simplified and Empirical approaches provide faster practical answers, Finite Element solutions render the results that are more accurate and better representative of the glazing system parameters because of taking into account the glass panel characteristics. These results could be used towards the development of more comprehensive blast-resistant glazing injury models to improve the safety provisions for the building occupants during an air blast.
机译：玻璃碎片是爆炸期间建筑物居民受伤的主要来源。因此，更好地了解这些玻璃板对各种玻璃系统参数和爆炸载荷特性的失效后响应，是减轻爆炸相关玻璃碎片伤害的重要步骤。成功的防爆玻璃设计要求在窗玻璃的安全性，外观和成本效益之间取得平衡，以提供合理程度的防护，以抵御爆炸性威胁。通过使用简化技术，经验方法和显式有限元模拟来计算拟议的玻璃系统，以找到包括碎片飞行速度在内的玻璃碎片的破坏后特征;生成的碎片数量及其飞行距离。危害等级评估的结果表明，对于常规玻璃窗系统，通过应用简化，经验和有限元方法，玻璃碎片特征（速度，距离和碎片数）将保持一致。尽管简化和经验方法提供了更快的实用答案，但是由于考虑了玻璃面板的特性，有限元解决方案使结果更加准确，并更好地代表了玻璃系统参数。这些结果可用于开发更全面的抗爆炸玻璃损伤模型，以改善在爆炸过程中对建筑物居民的安全规定。

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