核安全Issue(3)：54-56,3.
对断裂阻力曲线测量方法中钝化线的探讨
Discussion on the Construction Line Used in Fracture Toughness Measurement
李铁萍 1张春明 1刘锐1
作者信息
- 1. 环境保护部核与辐射安全中心,北京100082
- 折叠
摘要
Abstract
Since the construction line defining the initial crack extension will cause significant effect on fracture toughness measurement for ductile metals, the background of the construction line was analyzed based on mechanical model of crack-tip stress field. The popular used British standard E1820-08a and Chinese standard GB21143-2007 were compared for their different definition of the construction line in test method. Finally the rea-sonability of these two kinds of construction lines was discussed coupling with test result application.关键词
裂纹起裂/钝化线/断裂韧性Key words
crack extension/construction line/fracture toughness分类
化学化工引用本文复制引用
李铁萍,张春明,刘锐..对断裂阻力曲线测量方法中钝化线的探讨[J].核安全,2012,(3):54-56,3.
