抽油桿鋼(D409)抗拉強度測量結果不確定度的評定
郭素娟東北特殊鋼集團大連金牛股份有限公司中心試驗室,遼寧大連116031摘 要:為評定鋼材抗拉強度的測量不確定度,文章以抽油桿鋼(D409)為例,建立不確定度計算的數學模型,確定影響試驗結果的各項因素,計算各因素所帶來的不確定度分量,求出合成標準不確定度,從而得出擴展不確定度,最終給出鋼材抗拉強度測量結果的表達式。[著者文摘]
關鍵詞:抗拉強度 測量不確定度 標準不確定度 擴展不確定度
分類號: TG113.25[免標]文獻標識碼:B文章編號:1001-0777(2006)04-0048-02欄目信息:專題研究
相關文獻:主題相關
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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