Universal Stress-Strain Equation for Metallic Materials
| Autor: | Sixto Romero, Ricardo Arribas, F. Salguero, F. Moreno, Fulgencio Prat |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Materials science
Yield (engineering) Stress–strain curve Portevin–Le Chatelier effect Building and Construction Mechanics Strain rate Plateau (mathematics) Stress (mechanics) Mechanics of Materials Line (geometry) Forensic engineering General Materials Science Differentiable function Civil and Structural Engineering |
| Zdroj: | Journal of Materials in Civil Engineering. 26 |
| ISSN: | 1943-5533 0899-1561 |
| DOI: | 10.1061/(asce)mt.1943-5533.0000911 |
| Popis: | This paper presents an equation that governs the stress-strain behavior of any metallic material subjected to uniaxial stress tests under any stress or strain rate and under any temperature; thus, it can be considered as a universal model of uniaxial stress-strain behavior in which the classical models—lineal, perfectly plastic, elastic perfectly plastic, or those that obey a power law—are regarded as simple limiting cases of such an equation. Consequently, the equation represents one line only, which is continuous and differentiable at every point, and it is not necessary to draw it separately in sections to characterize the different phases or singular points that appear in the curves of building steel at room temperature, including different yield peaks (upper and lower), the plastic plateau, or even the Portevin-Le Chatelier effect that such a plateau often presents. |
| Databáze: | OpenAIRE |
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