We should draw stresscircle according to the sign provision of material mechanics .
在画应力圆时，应按材料力学的符号规定。
2
This paper makes improvements on the methods of stresscircle drawings. And this method can be used to calculate the strain and moment of inertia.
本文对应力圆图解法作了改进，使图解法更直观、更简便。并将改进后的图解法应用到应变、惯性矩计算中。
3
It is more convenient, simple and effective to analyze quality problem of compound deformation of sheet metal pressing parts by means of the concept of stresscircle.