Blast test and numerical simulation of point-supported glazing
Blast test and numerical simulation of point-supported glazing
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点支撑玻璃爆破试验与数值模拟
DOI：
10.1177/1369433216649387
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发表时间：
2016-05
影响因子：
2.6
通讯作者：
Lu, Yong
中科院分区：
文献类型：
--
作者：
Chen, Suwen;Zhu, Chen-Guang;Li, Guo-Qiang;Lu, Yong
采用现场爆炸试验和数值模拟相结合的方法，对点支式夹层玻璃幕墙的抗爆性能进行了研究。进行了九次现场爆破试验，考虑到两种类型的玻璃厚度和六种TNT炸药，从0.4到30公斤不等。测量了超压和位移时程，观察了破坏模式。从测量面板获得的超压表现出典型的近场爆炸模式，在几毫秒内急剧增加，然后迅速衰减。在较小的试验中（比例距离范围为4.5-7 m/kg 1/3），夹层玻璃板的位移响应随TNT装药量的增加几乎呈线性增加，这与这些试验中爆炸冲量的增加一致。点支撑夹层玻璃板的失效模式的特征在于支撑区域周围的聚乙烯醇缩丁醛层被撕裂，而玻璃碎片仍然粘附在聚乙烯醇缩丁醛夹层上。非线性动力有限元模拟结果与爆炸试验结果吻合较好。预测在支撑孔边缘处会出现严重的应力集中，导致这些支撑处开始失效，这也与爆破试验中观察到的失效模式一致。最后，进行了参数研究，调查TNT装药量和面板的几何参数对玻璃幕墙的爆炸响应的影响。
The blast resistance of point-supported laminated glass curtain wall has been investigated by means of field blast tests and numerical simulation. Nine site blast tests were carried out, considering two types of glass thickness and six TNT charges ranging from 0.4 to 30 kg. The overpressure and displacement time histories were measured and the failure modes were observed. The overpressure obtained from the measurement panel exhibited a typical pattern of near-field blast with a steep increase followed by a rapid decay within a few milliseconds. The displacement response of the laminated glass panels increased with the increase in the TNT charge almost linearly in the smaller tests (scaled distance ranging 4.5–7 m/kg1/3), which was in line with the increase in the blast impulse in these tests. The failure mode of the point-supported laminated glass panels was featured by tearing off of the polyvinyl butyral layer around the support area, while the glass shards still adhered to the polyvinyl butyral interlayer. Nonlinear dynamic finite element simulation agrees reasonably well with the results from the blast tests. Severe stress concentration has been predicted to occur at the rim of the support holes, leading to initiation of failure at these supports, and this also agrees with the failure mode observed from the blast test. Finally, parametric studies are carried out to investigate the influence of TNT charge weight and the geometric parameters of the panel on the blast response of the glass curtain wall.
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影响因子：
5.1
作者：
J. Xu;Y. Li;D. Ge;B. Liu;M. Zhu
通讯作者：
M. Zhu
DOI：
--
发表时间：
2010-11
期刊：
--
影响因子：
--
作者：
Colin Morison
通讯作者：
Colin Morison
影响因子：
5.1
作者：
Jun Wei;L. Dharani
通讯作者：
Jun Wei;L. Dharani
DOI：
10.1051/jp4:2006134176
发表时间：
2006-08
期刊：
Journal De Physique Iv
影响因子：
--
作者：
R. Iwasaki;C. Sato
通讯作者：
R. Iwasaki;C. Sato
影响因子：
5.1
作者：
Krauthammer, T;Altenberg, A
通讯作者：
Altenberg, A