| 复合材料层板一维穿透脱层的能量释放率 |
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| 引用本文： | 邹振民,樊蔚勋.复合材料层板一维穿透脱层的能量释放率[J].航空学报,1992,13(11):685-688. |
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| 作者姓名： | 邹振民 樊蔚勋 |
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| 作者单位： | 南京航空学院104教研室，南京航空学院104教研室 南京 210016，南京 210016 |
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| 摘 要： | 建立了含穿透脱层的正交各向异性层合板在承受面内轴向压缩载荷作用时的一维分析模型。在一阶剪切层板理论的基础上,利用一维可动边界变分问题,结合断裂力学知识导出了脱层扩展的能量释放率G及其分量GⅠ、GⅡ的表达式,且验证了该方法的正确性。通过计算,讨论了外载和脱层长度对能量释放率的影响。
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| 关 键 词： | 复合材料 层合板 脱层 屈曲 |
THE ENERGY RELEASE RATE OF ONE-DIMENSIONAL THROUGH-WIDTH DELAMINATION IN LAMINATES |
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| Zou Zhen-min,Fan Wei-xun.THE ENERGY RELEASE RATE OF ONE-DIMENSIONAL THROUGH-WIDTH DELAMINATION IN LAMINATES[J].Acta Aeronautica et Astronautica Sinica,1992,13(11):685-688. |
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| Authors: | Zou Zhen-min Fan Wei-xun |
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| Institution: | Faculty 104 of Nanjing Aeronautical Institute, Nanjing, 210016 |
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| Abstract: | In this paper, a one-dimensional analytical model is developed for the ortho-tropic laminates with through-width delamination subjected to compressive loads. On the basis of the first order shear deformable plate theory analysis, the energy release rate G and its individual components GⅠ、GⅡ for the deiamination growth are obtained using a combination of the variational problem with the moving boundary and fracture mechanics. This method is more convenient than the finite element method and is verified by numerical calculation. The effects of the applied load and delamination length on energy release rate GⅠ and GⅡ are also discussed in the parametric study. |
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| Keywords: | composite materials laminates delamination buckling |
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