Using historical results obtained in the tensile tests for Type A evaluation of uncertainty |
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| Affiliation: | 1. Federal University of Santa Catarina – UFSC, Mobility Engineering Center, Brazil;2. Education Society of Santa Catarina – SOCIESC, Brazil;3. University of Santa Catarina State – UDESC, Center of Technological Sciences – CCT, Brazil;1. LNE, 29 avenue Roger Hennequin, 78197 Trappes, France;2. TOTAL, 2 place Jean Millier – La Défense 6, 92078 Paris La Défense, France;3. TENESOL, 12 allée du Levant, 69890 La Tour-de-Salvagny, France;1. Yildiz Technical University, Department of Mechanical Engineering, 34349 Besiktas, Istanbul, Turkey;2. Vienna University of Technology, Institute for Production Engineering and Laser Technology, Department of Interchangeable Manufacturing and Industrial Metrology, Karlsplatz 13/3113, A-1040 Wien, Austria;3. Istanbul Physical Medicine and Rehabilitation Training Hospital Istanbul, Orthopaedics and Traumatology Department, Turkey;4. Yildiz Technical University, Department of Mechatronics Engineering, 34349 Besiktas, Istanbul, Turkey;1. Universidade de Évora, Centro de Geofísica de Évora, Instituto de Telecomunicações, Évora, Portugal;2. Universidade de Évora, Centro de Geofísica de Évora, Évora, Portugal;3. Institut für Angewandte Geowissenschaften, Technische Universität Darmstadt, Darmstadt, Germany;4. Instituto Superior Técnico, Universidade de Lisboa, Instituto de Telecomunicações, Lisboa, Portugal;1. Department of Engineering Mechanics, Kaunas University of Technology, K. Donelaicio 73, LT-44244 Kaunas, Lithuania;2. Department of Engineering Mechanics, Kaunas University of Technology, A. Mickeviciaus 37, LT-44244 Kaunas, Lithuania;3. Department of System Analysis, Kaunas University of Technology Studentu 50-407, LT-51368 Kaunas, Lithuania;4. Department of Machine Engineering, Vilnius Gediminas Technical University, J. Basanaviciaus g. 28, LT-03224 Vilnius, Lithuania;5. Precizika-Metrology, Zirmunu g. 139, LT-09120 Vilnius, Lithuania |
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| Abstract: | The specification of mechanical properties is essential for adequate choice of material, as well as for design and manufacturing of components and products. The main limitations in estimating uncertainty in testing are related to specimens destruction, sample size and existence of a wide range of influences quantities that are hard to quantify. This paper shows that it is possible to make use of historical data to minimize the effects of these limitations. A case study applied to the tensile test is presented, showing that Type A evaluation of uncertainty obtained from multiple homogeneous samples is more appropriate for the estimation of measurement uncertainty. And it is also demonstrated that the application of strength standard deviation has higher representativeness than the use of diameter and force standard deviations separately. |
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| Keywords: | Measurement uncertainty Tensile test Type A evaluation Historical data |
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