A strain energy method for elastic–plastic analysis of notches under shear loading
| Autor: | Zahra Salemi, Daniel Kujawski |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Notch root
Materials science business.industry Applied Mathematics Mechanical Engineering Strain energy density function 02 engineering and technology Structural engineering 021001 nanoscience & nanotechnology Condensed Matter Physics Finite element method Strain energy Elastic plastic 020303 mechanical engineering & transports 0203 mechanical engineering Shear (geology) Notch analysis General Materials Science Composite material 0210 nano-technology business |
| Zdroj: | Theoretical and Applied Fracture Mechanics. 84:49-56 |
| ISSN: | 0167-8442 |
| DOI: | 10.1016/j.tafmec.2016.02.003 |
| Popis: | Neuber’s rule and the equivalent strain energy density (ESED) method are two well-known approximate approaches for elastic–plastic notch analysis. Neuber’s rule often overestimates whereas the ESED method underestimates the values of notch root stresses and strains. In the present study an approximate method has been proposed, which is based on the strain energy density analysis for notches under shear loading. The proposed method has been assessed against the FEA results from the literature and a good agreement has been observed. Besides predicting notch strains for loading with predominant plastic zone, a significant improvement is found in contrast with those estimated by the Neuber’s rule or the ESED method. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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