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:: Volume 10, Issue 1 (Spring 2019) ::
3 2019, 10(1): 89-100 Back to browse issues page
Investigating the Effect of Opening on Loaded Explosion
Safa Peyman Dr. , Amin Lotfi Eng.
Abstract:   (48 Views)
Various structures are subject to explosion for terrorist and non-terrorist reasons. The study of effective factors in reducing the damage caused by the explosion is one of the most important issues of passive defense. One of these factors is the presence of openings in the structure under confined explosion. In this study, the effect of opening on the loading caused by the explosion has been examined in terms of pressure-time and impulse-time graphs. In this regard, using the UFC 3-340-02 regulations and numerical simulation of the AUTODYN hydrocode, the confined explosion of a TNT explosive with different masses in a cubic chamber, with different openings in terms of size and location, has been investigated. The investigation results of the effect of each of the opening position factors specify the number of pop-ups with openings and the size of the opening on the loading exerted on the inner surface of the structure due to the confined explosion. Finally, in addition to determining the parametric optimal optimization, the results of the confined explosion resulting from numerical simulation are compared and examined with the UFC 3-340-02 regulations.
Keywords: Confined Explosion, Opening, Pressure-Time Graph, Impulse-Time Graph, Explosive Loading, Passive Defense
Full-Text [PDF 1575 kb]   (17 Downloads)    
Type of Study: Research | Subject: construction
Received: 2017/12/6 | Accepted: 2018/04/24
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peyman S, lotfi A. Investigating the Effect of Opening on Loaded Explosion. 3. 2019; 10 (1) :89-100
URL: http://adst.ir/article-1-1130-en.html


Volume 10, Issue 1 (Spring 2019) Back to browse issues page
علوم و فناوری های پدافند نوین ADST Journal
درجه علمی - پژوهشی توسط وزارت علوم، تحقیقات و فناوری اعطا گردید.