用于压力容器缺陷评定的设计曲线方法研究

A Study on Applying Design Curve Method to Fracture Assessment of Pressure Vessels

本文在弹塑性断裂力学分析的基础上,提出了一种新的缺陷安全评定方法-Φ_J方法。文中给出了Φ_J设计曲线及其简化公式,并研究了现行压力容器缺陷评定规范设计曲线方法用于幂硬强化材料的安全性问题,为进一步修订我国CVDA-84规范提供了一条合理途径。

Based on the elastoplastic fracture mechanics analysis, this paper suggests a new safety assessment method of Φ_J design curve and investigates safety question when the COD design curve method in the standards is used for flaws of non- linear material pressure vessels. This work provides a reasonable course to revise CVDA-84 Standard of China.