It is concluded that the explicit anisotropic yield criterion for jointed rock masses which is obtained by approximate analytical method has high precision.
研究表明，提出的节理岩体各向异性显式屈服准则具有很高的精度。
Using an approximate analytical method, the explicit expression of stress concentration factors is derived for an eccentric circular hole in a tension orthotropic finite-width strip.
用近似解析方法推导出拉伸正交各向异性有限宽板偏心圆孔的应力集中系数的显式表达式，除了比较极端的情况外，该式的精度较好。
In this paper, an approximate analytical method is developed by which pitching derivatives are predicted for three dimensional wings with pointed leading edge in supersonic and hypersonic stream.
本文给出计算超声速和高超声速尖前缘三维机翼俯仰导数的一个近似解析方法。
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