Application of ALE Multi-Material Formulation for Blast Analysis of Glass Curtain Wall
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摘要: 应用LS-DYNA显式程序,基于多物质的ALE有限元法,利用罚函数实现了爆炸冲击波与玻璃幕墙结构间的耦合作用,重现了玻璃幕墙防爆炸实验中爆炸荷载的产生及其与玻璃幕墙相互作用的三维动态过程。研究了爆炸冲击波作用下幕墙结构的动态响应行为,分析了幕墙内外层玻璃的破坏情况。研究表明,数值模拟结果与实验结果一致,这为玻璃幕墙的抗爆设计及改进提供了重要的参考依据。Abstract: The multi-material arbitrary lagrangian-eulerian (ALE) formulation and the penalty-based coupling approach were applied to simulate the air explosion and the interaction between explosive blast and curtain wall in resistance test of curtain wall by using LS-DYNA software. The dynamic behavior of glass curtain wall under blast loading was analyzed. Including the brittle failure of glass material in the model, the damage regions of inner and outer glass were reappeared in the numerical simulation. The numerical results are in agreement with the experimental observations, which will provide an important reference for the blast resistance design and improvement of glass curtain wall.
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Key words:
- explosion mechanics /
- glass curtain wall /
- ALE formulation /
- numerical simulation
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Chen J, Zhang Q S, Li X H, et al. Blast Protection Design of Glass Curtain Wall in High-Rise Building [J]. Journal of Shandong Jianzhu University, 2007, 22(5): 387-390. (in Chinese) 陈峻, 张青松, 李兴华, 等. 高层建筑玻璃幕墙的抗爆炸设计 [J]. 山东建筑大学学报, 2007, 22(5): 387-390. Wei J, Shetty M S, Dharani L R. Stress Characteristics of a Laminated Architectural Glazing Subjected to Blast Loading [J]. Comput Struct, 2006, 84(10-11): 699-707. Zhao S, Dharani L R, Liang X. Analysis of Damage in Laminated Architectural Glazing Subjected to Blast Loading [J]. Adv Struct Eng, 2008, 11(1): 129-134. Weggel D C, Zapata B J. Laminated Glass Curtain Walls and Laminated Glass Lites Subjected to Low-Level Blast Loading [J]. J Struct Eng, 2008, 134(3): 466-477. Hao L, Ning J G, Wang C. 2D Numerical Simulation of Explosive Damage Effect on Obstacles in Water [J]. Chinese Journal of High Pressure Physics, 2006, 20(1): 39-45. (in Chinese) 郝莉, 宁建国, 王成. 水中障碍物爆炸毁伤效应的二维数值模拟 [J]. 高压物理学报, 2006, 20(1): 39-45. LS-DYNA Keyword User's Manual (971) [Z]. California: Livermore Software Technology Corporation, 2007. JGJ102-2003. Technical Code for Glass Curtain Wall Engineering [S]. 2003. (in Chinese) JGJ102-2003. 玻璃幕墙工程技术规范 [S]. 2003. Li J Q, Ma S Z. Explosive Mechanics [J]. Beijing: Science Press, 1992: 260-261. (in Chinese) 李翼祺, 马素贞. 爆炸力学 [J]. 北京: 科学出版社, 1992: 260-261.
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