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Nonlinear Homogenization Algorithms with Low Computational Cost

机译:计算成本低的非线性均化算法

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References(12) Cited-By(1) An efficient homogenization method for nonlinear problems is introduced. We have already developed a homogenization technique using characteristic deformation mode superposition that avoids prohibitive computational cost. However, in the mode superposition technique, the approximation error created depends on the analysis case. In this paper a new method is proposed, in which the same accuracy as the exact method is preserved by solving the microscopic equilibrium equation, while approximating the tangential matrix of the multi-scale equilibrium equation using the mode superposition method. The performance of the proposed method is examined together with the block LU factorization algorithm, and satisfactory results are obtained.
机译:参考文献(12)Cited-By(1)介绍了一种有效的非线性问题均化方法。我们已经开发出使用特征变形模式叠加的均质化技术,从而避免了过高的计算成本。但是,在模式叠加技术中,所产生的近似误差取决于分析情况。本文提出了一种新的方法,该方法通过求解微观平衡方程来保持与精确方法相同的精度,同时使用模式叠加法逼近多尺度平衡方程的切向矩阵。与块LU分解算法一起检查了该方法的性能,并获得了满意的结果。

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