传统的膜应力计算方法比较复杂，而计算研究点承受的外载荷的轴向分量是求解膜应力的关键。
The conventional compution membrane stress method is more complicated, and it is the key about solve membrane stress that compute axial component of external applied load which was studied.
针对石油化工行业大量采用的等径挤压三通，提出了一个计算内压载荷下的纵向平面内挤压圆角处各应力分量的近似方法。
An approximate method for calculating the elastic stresses at the squeeze at the squeeze corner sections of an identical diameter Tee branch pipe connection under internal pressure was presented.
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