抽油杆钢(D409)抗拉强度测量结果不确定度的评定
郭素娟东北特殊钢集团大连金牛股份有限公司中心试验室,辽宁大连116031摘 要:为评定钢材抗拉强度的测量不确定度,文章以抽油杆钢(D409)为例,建立不确定度计算的数学模型,确定影响试验结果的各项因素,计算各因素所带来的不确定度分量,求出合成标准不确定度,从而得出扩展不确定度,最终给出钢材抗拉强度测量结果的表达式。[著者文摘]
关键词:抗拉强度 测量不确定度 标准不确定度 扩展不确定度
分类号: TG113.25[免标]文献标识码:B文章编号:1001-0777(2006)04-0048-02栏目信息:专题研究
相关文献:主题相关
Evaluation of Uncertainty for Determination Result of Tensile Strength in Steel D409GUO Su-juan Central Laboratory of Dongbei Special Steel Group Co Ltd, Dalian 116031 ,Liaoning, ChinaAbstract:In order to evaluate the measurement uncertainty of tensile strength of steel, the mathematic model of uncertainty of steel(D409)is established. And different influence factors of measurement result are analyzed and calculated. At last, the measurement result is expressed with the expanded uncertainty.[著者文摘]
Key words:Tensile strength; uncertainty of measurement ; standard uncertainty;expanded uncertainty |
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