EFFECTS OF STRESS-STRAIN DATA SYNCHRONISATION ERRORS ON THE DETERMINATION OF YOUNG’S MODULUS OF HARD AND SOFT MATERIALS IN MATERIAL TESTING MACHINES |
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| A. Prato, A. Schiavi, A. Facello, F. Mazzoleni, A. Germak |
- Abstract:
- In this paper, the effects of stress-strain data synchronisation errors on Young’s modulus of hard and soft materials in typical material testing machines are described. Seven materials, three Cu Cr Zr alloys and four polymers, are tested in two machines conceived for the measurement of the mechanical properties of hard and soft materials. In both machines, the synchronisation of stress and strain signals are guaranteed by the machine’s internal signal processing system. By performing known temporal shifts with respect to each other, the Young’s modulus is calculated. In this way, the variation of Young’s modulus as a function of the temporal shift can be determined and the sensitivity coefficients, to be used in the uncertainty evaluation, derived.
- Keywords:
- stress-strain; Young’s modulus; synchronisation; metals; polymers; material testing machines
- Download:
- IMEKO-TC3-2022-084.pdf
- DOI:
- 10.21014/tc3-2022.084
- Event details
- IMEKO TC:
- TC3
- Event name:
- TC3 Conference 2022
- Title:
24th Conference on the Measurement of Force, Mass and Torque (together with the 14th TC5 Conference on the Measurement of Hardness, the 6th TC16 Conference on Pressure and Vacuum Measurement, and the 5th TC22 Conference on Vibration Measurement)
- Place:
- Cavtat-Dubrovnik, CROATIA
- Time:
- 11 October 2022 - 13 October 2022