风致飞掷物冲击建筑浮法玻璃实验和数值模拟

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振动与冲击 ›› 2022, Vol. 41 ›› Issue (1) : 24-30.

论文

陈胜，黄鹏，顾明

作者信息 +

Tests and numerical simulation of wind-induced flying projectile impacting building float glass

CHEN Sheng, HUANG Peng, GU Ming

Author information +

文章历史 +

摘要

通过实验和有限元数值模拟的方法研究风致飞掷物对建筑浮法玻璃的冲击破坏效应。首先进行钢球冲击浮法玻璃面板的破坏实验，然后基于LS-DYNA建立与实验对应的飞掷物冲击浮法玻璃有限元模型，并通过对比实验和数值模拟的结果验证有限元模型的可靠性。最后基于验证后的有限元模型，以板状飞掷物为代表，研究风致飞掷物的冲击位置、冲击姿态和外形等特性对其冲击效应的影响。结果表明，建筑浮法玻璃在风灾中非常容易受到飞掷物的冲击而破坏。采用JH-2作为浮法玻璃的本构模型并以SIGP1=75 MPa作为失效准则，能够较准确地模拟浮法玻璃在冲击荷载下的破坏特性。板状飞掷物的冲击位置对其冲击效应影响不大，但其冲击姿态和边厚比对冲击效应有较大的影响。

Abstract

Laboratory tests and numerical simulations were used to study the impact damage of windborne debris on residential float glass. Firstly, failure test was carried out to evaluate the performance of float glass impacted by steel ball, and then a finite element model was constructed using LS-DYNA. The reliability of the model was verified by comparing the results of tests and numerical simulations. Finally, the impact effects of impact position, impact attitude and shape of the plate-like debris were analyzed based on the verified model. The results show that residential float glass is very vulnerable to debris impact, and the JH-2 constitutive model with a failure criterion of SIGP1=75 MPa for the float glass could closely simulate the failure of glass under impact loadings. The impact position of debris has little effect on the impact results, but the influence of impact attitude and shape of the debris cannot be ignored.

导出引用

陈胜，黄鹏，顾明. 风致飞掷物冲击建筑浮法玻璃实验和数值模拟[J]. 振动与冲击, 2022, 41(1): 24-30

CHEN Sheng, HUANG Peng, GU Ming. Tests and numerical simulation of wind-induced flying projectile impacting building float glass[J]. Journal of Vibration and Shock, 2022, 41(1): 24-30

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