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首页> 外文期刊>Journal of Civil Engineering and Science >Numerical Versus Simplified Analytical Approach for Prediction of Flexural Strength in LG Beams
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Numerical Versus Simplified Analytical Approach for Prediction of Flexural Strength in LG Beams

机译：LG梁抗弯强度预测的数值与简化分析方法

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Flexural behavior of laminated glass beams was numerically predicted through an open source finite element code; a cohesive-frictional behaviour of the adhesive and the brittle fracture of the glass were implemented though adequate constitutive laws. Both the processes of de-bonding of interlayer and the failure of glass panels can be captured by a refined finite element analysis. Based on the elastic theory, simple analytical expressions are utilized for the prediction of composite glass beams, including the extreme cases of full composite and layered behaviour. Cases of study refer to glass composite beams having T or I cross-section shapes. Beams consist of laminated glass (LG) flanges and LG web that is assembled together by different kinds of polymer adhesive (semi-rigid i.e., silicones, modified silicones and polyurethanes and rigid i.e., epoxy resins, acrylics). Experimental data given in the literature was utilized to show the effectiveness of numerical model to reproduce experimental results, and to show the effectiveness of the proposed elastic model for preliminary beams in flexure design.
机译：夹层玻璃梁的弯曲行为通过开源有限元代码进行了数值预测。通过适当的本构定律，实现了粘合剂的内聚摩擦行为和玻璃的脆性断裂。夹层剥离的过程和玻璃面板的破坏都可以通过改进的有限元分析来捕获。基于弹性理论，简单的解析表达式用于预测复合玻璃梁，包括完全复合和层状行为的极端情况。研究案例是指具有T或I截面形状的玻璃复合梁。横梁由夹层玻璃（LG）法兰和LG腹板组成，它们通过不同种类的聚合物粘合剂（半刚性，即硅树脂，改性硅树脂和聚氨酯，以及刚性，即环氧树脂，丙烯酸树脂）组装在一起。利用文献中给出的实验数据来证明数值模型再现实验结果的有效性，并证明所提出的弹性模型对于挠性设计中的预应力梁的有效性。

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