BS 8571-2014 使用单边缺口拉伸 (SENT) 试件测定金属材料断裂韧性的试验方法

标准号：BS 8571-2014
中文标准名称：使用单边缺口拉伸 (SENT) 试件测定金属材料断裂韧性的试验方法
英文标准名称：Method of test for determination of fracture toughness in metallic materials using single edge notched tension (SENT) specimens
标准类型：J33
发布日期：2014/12/1 12:00:00
实施日期：2014/12/1 12:00:00
中国标准分类号：J33
国际标准分类号：25.160.40
适用范围：This British Standard gives methods for determining fracture toughness in metallic materials in terms of δ (crack tip opening displacement,CTOD) and J (experimental equivalent of the J-integral) using single edge notched tension (SENT) specimens.This British Standard gives a method for determining fracture toughness as a resistance to ductile crack extension (R-curve). A method for single point determination of fracture toughness is also given. The method uses specimens which have been notched and fatigue pre-cracked into parent metal,weld metal or heat affected zone (HAZ). The specimens are loaded in tension,and the force and crack mouth opening displacement are recorded.