非均匀介质有限元法
FINITE ELEMENT METHOD FOR NONHOMOGENEOUS MEDIUM
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摘要: 提出适合非均匀介质应力分析的有限元法.文中在有限单元内部采用等参变换方法模拟材料特性的变化,算例表明该法计算效率高,计算精度好.Abstract: This paper proposes a finite element method for the stress analysis of nonhomogeneous medium. The concept of isoparametric transformation is adopted for simulating the variations of material properties in finite elements. The example shows that this improved FEM has higher efficiency and higher accuracy for analyzing nonhomogeneous medium.