Comparison of static and dynamic methods for measuring stiffness of high modulus steels and metal composites
| Autor: | R. M. Morrell, J. D. Lord |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Materials science
Series (mathematics) business.industry Metals and Alloys Strain measurement Robust statistics Modulus Stiffness Young's modulus Structural engineering Industrial and Manufacturing Engineering symbols.namesake Dynamic modulus symbols Forensic engineering medicine medicine.symptom business Tensile testing |
| Zdroj: | Canadian Metallurgical Quarterly. 53:292-299 |
| ISSN: | 1879-1395 0008-4433 |
| Popis: | The accurate measurement of modulus is not an issue specific to high modulus steels, but is still a challenge for the wider engineering and materials community. Inherently, the measurements should not offer significant problems, but results from a series of interlaboratory validation exercises and data on representative high modulus steels are included to illustrate some of the practical issues associated with the static and dynamic techniques. Dynamic methods probably offer the potential for the most accurate measurements due to the simple geometry and test set-up. Results show that a well set up test could be expected to give modulus values with an uncertainty of ±1–2%. Comparable levels can be achieved from the tensile test, but only through the use of a separate and dedicated test, where loading is carried out below the elastic limit, using averaging strain measurement, careful alignment and robust data analysis procedures. La mesure precise du module d’elasticite n’est pas un probleme specifique aux ... |
| Databáze: | OpenAIRE |
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