摘要
对金属材料断裂韧度KIC的测量不确定度进行了评定。从试验机等级、试样尺寸测量、试验人员和引伸计等方面对引起不确定性的因素进行了详细讨论和计算。并指出影响断裂韧度测量准确性的主要因素是试验机的等级和人员技术水平。
The uncertainty evaluation of fracture toughness for metallic material is introduced. The uncertainty factors, such as grade of testing machine, specimen dimension measurement and tools, tester, grade of extensometer, etc. are analyzed and calculated in detail. The main factors are grade of testing machine and technology level of tester.
出处
《理化检验（物理分册）》
CAS
2008年第5期238-241,共4页
Physical Testing and Chemical Analysis(Part A:Physical Testing)
关键词
测量不确定度
断裂韧度
金属材料
Measurement uncertainty
Fracture toughness
Metallic material
