Measurement of Flow Stress for Pure Aluminum up to 10 in Strain
| Autor: | Takashi Ishikawa, Yasuhiro Yogo, Masafumi Hosoya, Michiaki Kamiyama, Noritoshi Iwata, Sawamura Masatoshi |
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| Jazyk: | angličtina |
| Předmět: |
Measurement
Metal forming Materials science business.industry Stress–strain curve High pressure torsion chemistry.chemical_element Torsion (mechanics) General Medicine Structural engineering Flow stress chemistry Aluminium Stress-strain curve Compression test Compression testing Composite material business Engineering(all) Tensile testing Aluminum |
| Zdroj: | Procedia Engineering. :377-382 |
| ISSN: | 1877-7058 |
| DOI: | 10.1016/j.proeng.2014.10.009 |
| Popis: | A stress-strain curve is generally measured by tensile testing or compression testing. In some metal forming processes, the maximum strain exceeds 5.0 (500%); however, the standard testing methods can only measure an stress-strain curve up to a strain of 1.0. Therefore, a new method was developed that enables us to measure a stress-strain curve for strains up to 10.0. High-pressure torsion was applied for the measurement. Using high-pressure torsion, it is possible to introduce larger strains than conventional methods. A stress-strain curve measurement was performed for pure aluminum. The stress-strain curve measured using the developed method was compared with that obtained using a compression test. It is confirmed that the flow stress was successfully measured up to a strain of 10.0. In addition, the results for the developed method correspond with that of the compression test up to a strain of 1.0. |
| Databáze: | OpenAIRE |
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