An exact solution for stresses in cracked composite laminates and evaluation of the characteristic damage state
An exact solution for stresses in cracked composite laminates and evaluation of the characteristic damage state
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裂纹复合材料层压板应力的精确求解和特征损伤状态的评估
DOI：
10.1016/j.compositesb.2011.04.006
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发表时间：
2011-07
期刊：
影响因子：
--
通讯作者：
Chan, C. K.
中科院分区：
文献类型：
--
作者：
Huang, Z. Q.;Nie, G. H.;Chan, C. K.
本文给出了铺层厚度为[0 m Ω/90 n Ω]的含裂纹复合材料层合板应力的精确解。假设90°和0°铺层间的层间剪应力为正弦函数的级数展开式。这导致层合板中的应力分量具有来自平衡方程以及层间应力的边界条件的相应级数表达式。利用最小势能原理推导出未知系数的代数方程。此外，循环微分函数被引入到层合板的解析表达的结果的应力。作为一个应用程序，减少的杨氏模量和泊松比的变化为不同的层压板进行评估，并与现有的实验和预测结果进行比较。文中还给出了层间应力的分布，结果表明，本文的解是精确的，适用于复合材料层合板特征损伤状态的分析。
An exact solution for stresses in cracked composite laminates with lay-up [0 m∘/90 n∘] is developed in this paper. The inter-laminar shear stresses between the 90° and 0° plies are assumed to be in the form of series expansion of sinusoidal functions. This leads to the stress components in laminates having corresponding series expressions from the equilibrium equations together with boundary conditions for inter-laminar stresses. The principle of minimum potential energy is used to derive algebraic equations for the unknown coefficients. Furthermore, cyclic differential function is introduced to express analytically the resulting stresses in the laminates. As an application, reduction of Young’s modulus and change in Poisson’s ratio for different laminates are evaluated and compared with available experimental and predicted results. Distributions of inter-laminar stresses are also presented in this paper, with results showing that the present solution is accurate and suitable for the analysis of characteristic damage state for composite laminates.
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影响因子：
4.5
作者：
A. Parvizi;K. Garrett;J. E. Bailey
通讯作者：
A. Parvizi;K. Garrett;J. E. Bailey
DOI：
10.1016/s1359-835x(99)00077-9
发表时间：
2000-04
影响因子：
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DOI：
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1993
期刊：
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影响因子：
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影响因子：
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作者：
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影响因子：
3.6
作者：
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