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《Physical Testing and Chemical Analysis Part A Physical Testing》 2003-09
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UNCERTAINTY EVALUATION FOR THE MEASUREMENT RESULTS OF THE PROOF STRENGTH AT NON-PROPORTIONAL EXTENSION R_(p0.2)OF METALLIC MATERIALS

FU Zhi-qiang (Tianjin Entry-Exit Inspection and Quarantine Bureau, Tianjin 300201, China)  
According to the requirements of the standard JJF1059-1999 "uncertainty evaluation and denotation of the measurement results", the uncertainty for the measurement results of the proof strength at non-proportional extension R_(p0.2)of metallic materials which was stipulated in the standard GB/T228-2002 "metallic materials-tensile testing at ambient temperature" was evaluated. With concerning about the characteristics of uncertainty of the metallic mechanical property, a kind of stainless steel was taken as the specimen due to its relative homogeneous property. After the effect level of the different factors such as method, equipment, measuring tool, inspector, and environment was analyzed. The relative uncertainty of measurement results of the proof strength at non-proportional extension R_(p0.2)of was 2.55% in this test conditions.
【CateGory Index】: TG115
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【References】
Chinese Journal Full-text Database 1 Hits
1 WANG Jun1,WANG Yu-ling2(1.Physico-chemical Examination Center,Beijing Xinghang Electromechanical Equipment Plant,Beijing 100074,China;2.Steel Structure Division,Beijing BBEF Science & Technology Co.Ltd.,Beijing 100121,China);Uncertainty Evaluation for Measurement Results of Proof Strength at Non-proportional Extension of Metallic Materials[J];Physical Testing and Chemical Analysis(Part A:Physical Testing);2010-09
【Co-references】
Chinese Journal Full-text Database 2 Hits
1 LING Xiao (Testing Center of Shanghai Research Institute of Material, Shanghai 200437, China);THE UNCERTAINTY EVALUATION OF THE TENSILE TESTING FOR METALLIC MATERIALS[J];Physical Testing and Chemical Analysis Part A Physical Testing;2004-06
2 DENG Xing-ling,LIANG Xin-bang (Central Iron and Steel Research Institute,Beijing 100081,China);Evaluation of Uncertainty of Measurement in Tensile Testing for Metallic at Ambient Temperature[J];Physics Examination and Testing;2006-06
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