采用独立双应力函数分析纯弯曲复合材料厚壁管
发布时间：2019-03-22 07:48
【摘要】：在纯弯曲复合材料组合管的统一参数法分析中,采用独立双应力函数求解0°和90°的特殊缠绕层及各向同性层,从而代替统一参数法求解过程中当普通层趋向于特殊缠绕层的极限分析,避免了弹性系数关于缠绕角的复杂导数的计算,特别有利于各向同性材料层不存在缠绕角而难以计算导数的问题,推广了统一参数法的应用范围,是对统一参数法的一个改进.数值算例中采用改进的统一参数法分析了不同复合材料组合管的力学性能,结果与有限元精细模拟吻合较好,说明本文中方法的有效性.
[Abstract]:In the unified parameter analysis of pure bending composite pipe, the special winding layer and isotropic layer of 0 掳and 90 掳are solved by independent double stress function. Instead of the unified parameter method, when the ordinary layer tends to the limit analysis of the special winding layer, the calculation of the complex derivative of the elastic coefficient with respect to the winding angle is avoided. In particular, it is beneficial to the problem that there is no winding angle in the isotropic material layer and it is difficult to calculate the derivative. It extends the application scope of the unified parameter method and is an improvement of the unified parameter method. The improved unified parameter method is used to analyze the mechanical properties of different composite pipes in numerical examples. The results are in good agreement with the finite element simulation, which shows the effectiveness of the method in this paper.
【作者单位】： 厦门大学建筑与土木工程学院;
【基金】：福建省自然科学基金(2014J01208)
【分类号】：TB33
本文编号：2445407
[Abstract]:In the unified parameter analysis of pure bending composite pipe, the special winding layer and isotropic layer of 0 掳and 90 掳are solved by independent double stress function. Instead of the unified parameter method, when the ordinary layer tends to the limit analysis of the special winding layer, the calculation of the complex derivative of the elastic coefficient with respect to the winding angle is avoided. In particular, it is beneficial to the problem that there is no winding angle in the isotropic material layer and it is difficult to calculate the derivative. It extends the application scope of the unified parameter method and is an improvement of the unified parameter method. The improved unified parameter method is used to analyze the mechanical properties of different composite pipes in numerical examples. The results are in good agreement with the finite element simulation, which shows the effectiveness of the method in this paper.
【作者单位】： 厦门大学建筑与土木工程学院;
【基金】：福建省自然科学基金(2014J01208)
【分类号】：TB33
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