理化检验-物理分册Issue(12)：892-893,910,3.DOI:10.11973/lhjy-wl201512013
金属材料抗压强度测试的不确定度评定
Uncertainty Evaluation on Measuring Compressive Strength of Metallic Materials
刘晶琳 1胡长春1
作者信息
- 1. 无锡市产品质量监督检验中心，无锡 214101
- 折叠
摘要
Abstract
According to GB/T 7314-2005 Metallic Materials -Compression Testing at Ambient Temperature , The mathematical model for evaluating the measurement uncertainty of compressive strength of metallic plastic materials was established.And with Q235 steel as an example,the uncertainty components caused by sample cross-sectional area calculating and universal testing machine force measuring were evaluated, respectively.The results show that the compressive strength of the test Q235 steel R mc =(645±5)MPa when the coverage factor k =2.关键词
金属材料/抗压强度/不确定度评定Key words
metallic material/compressive strength/uncertainty evaluation分类
矿业与冶金引用本文复制引用
刘晶琳,胡长春..金属材料抗压强度测试的不确定度评定[J].理化检验-物理分册,2015,(12):892-893,910,3.
