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首页> 外文期刊>European Journal of Environmental and Civil Engineering >Numerical 3D finite element modelling and experimental tests of rounded dovetail connection
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Numerical 3D finite element modelling and experimental tests of rounded dovetail connection

机译：圆弧形燕尾连接的数值3D有限元建模和实验测试

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摘要

The mechanical behaviour of the rounded dovetail connection subjected to shear load is analysed experimentally and numerically. The brittle failure of the joist member is observed in the experimental investigation. The experimental results are used to validate a three-dimensional (3D) non-linear finite element model. The non-linear models use the Hill criterion to manage the plastic yielding of the wood material. The modified Hill failure criteria, managing the damage evolution in wood, are used to take into account the brittle failure in shear and tension. Besides, the models also incorporate the contact and the geometric non-linearity. The comparison with experimental results shows that the numerical models are in good agreement with real behaviour. The validated models can be used to predict the strength and failure position of the rounded dovetail connection for parametric studies.
机译：实验和数值分析了圆形燕尾榫连接在剪切载荷作用下的力学行为。在实验研究中观察到托梁构件的脆性破坏。实验结果用于验证三维（3D）非线性有限元模型。非线性模型使用希尔准则来管理木材的塑性屈服。修改后的Hill破坏准则用于控制木材的破坏演变，用于考虑剪切和拉伸的脆性破坏。此外，模型还包含接触和几何非线性。与实验结果的比较表明，数值模型与实际行为吻合良好。经过验证的模型可用于预测圆形燕尾连接的强度和失效位置，以进行参数研究。

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