This programme can be applied universally and can be use to anyalsis some kinds of pipe. Practice pipe of CNC bending compute, gained the interiorstress?
通过实际管材在CNC弯曲过程中的计算，得到内部应力、应变分布及变形。
2
The interior or exterior residual stress of metal components has importance effect on mechanics performance.
金属表面与内部残余应力的存在对构件的力学性能有重大影响。
3
Earthquake occur because of tectonic stress action from the interior of earth, rock suddenly rupture and slip.