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The study of the national measurement standards allows to carry out experimental programs on their improvement and increasing the level of metrological services. The analysis of the influence of additional input quantities complicates the model equation but leads to in-depth study of the physical process. Calculations are made using the finite element method implemented in the academic version of the software package of engineering analysis. The purpose of the work is to study the influence of additional sensitivity coefficients included in the uncertainty budget of the measurement result. In the example of modeling of the hardness measurement on the Rockwell and Super- Rockwell scales, an approach to refine the model equation based on the inclusion of additional input quantities is considered. As a practical application, the proposed methodology is useful in evaluating the results of international comparisons. As a promising area for further research, there is an in-depth study of additional sensitivity coefficients when drawing-up the uncertainty budget on the Vickers and Brinell scales. |
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Analytical research
Standards development
Finite element methods
Metals
Mathematical modeling
Metrology
Process modeling
