利用这一方法得到一个新的八节点四边形平面应力单元。
By the present method, a new incompatible curved quadrilateral plane element with eight nodes is obtained.
该方法不用一般的变分原理，可适用任意变系数正定和非正定偏微分方程。利用这一方法得到一个新的八节点四边形平面应力单元。
It doesn't need the variational principle and can be applied to solve non-positive or positive definite partial differential equations with arbitrary variable coefficient.
首先，对反射裂缝尖端应力场的奇异性进行了描述，建立了平面断裂问题应力强度因子的有限单元解。
Firstly, after depicting the singularity of stress field at the top of crack, the finite element method to calculate stress intensity factor of plain fracture problems is founded.
本文对钢筋混凝土构件中的平面应力问题，运用有限单元法进行非线性应力分析。
In this paper non-linear analysis with finite element method is used in the study of the plane stress Problems of reinforced concrete members.
本文提出关于平面应力状态单元体上两个主平面与两个主应力对应关系的直观判断方法。
This paper advances a direct observational method to determine two principal planes corresponding with two principal stresses Belng simple and obvious, this method ean be mastered easily.
其次，编制了平面应力问题等效铰结平面桁架单元有限元法分析计算机程序。
Secondly, the equivalent plane truss element analysis program of plane stress problem is worked out, by which cantilever beam, simple beam and perforated wall are analyzed.
我国及邻区的现代构造应力场作为一平面应力问题用有限单元法进行了计算。
A calculation of present. Tectonic stress field of China and its vicinity as a plane stress problem has been made by means of the finite element method.
我国及邻区的现代构造应力场作为一平面应力问题用有限单元法进行了计算。
A calculation of present. Tectonic stress field of China and its vicinity as a plane stress problem has been made by means of the finite element method.
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