Steady-state thermomechanical analysis of composite laminated plate with damage based on extended layerwise method

Steady-state thermomechanical analysis of composite laminated plate with damage based on extended layerwise method
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基于扩展分层法的带损伤复合材料层合板稳态热机械分析

DOI:
10.1007/s00419-019-01617-x
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发表时间:
2020-02
影响因子:
2.8
通讯作者:
F. Zhang
F. Zhang
中科院分区:
工程技术4区
文献类型:
--
作者:
D. H. Li;W. K. Shan;F. Zhang

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基于扩展的LayerWise方法,建立了含横向裂纹和脱层的复合材料层合板的稳态热力学分析模型。用一维弱间断函数和强间断函数分别模拟层间界面和脱层,而用标准扩展有限元方法模拟面内位移场中的横向裂纹。厚度方向的温度场由一维稳态热传导方程得到,厚度方向的温度场由线性拉格朗日插值函数构造。在几个算例中,用经典的层合板理论、一阶剪切变形理论、Reddy的LayerWise理论或三维弹性模型对有/无横向裂纹和/或脱层的层合板模型进行了验证。
A steady-state thermomechanical analysis model is established for the composite laminated plate with transverse cracks and delaminations based on the extended layerwise method. The one-dimensional weak and strong discontinuous functions are employed to simulate the interlaminar interfaces and the delaminations, respectively, while the transverse crack is simulated in the in-plane displacement fields by using the standard extended finite element method. The temperature field in the thickness direction is obtained by using a one-dimensional steady-state heat conduction equation and constructed with the linear Lagrange interpolation functions in the thickness direction. In several numerical examples, the proposed model is verified for the laminated plates with/without transverse crack and/or delaminations against the classic laminated plate theory, first-order shear deformation theory, Reddy’s layerwise theory or three-dimensional elastic model.
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