A New Crack Propagation Model Based on the Notch Analysis Methodology
| Autor: | Shengnan Wang, Kun Zhao |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
High rate
Materials science business.industry General Engineering nominal applied stress TL1-4050 Fracture mechanics Structural engineering weiss notch method Stress (mechanics) matlab Notch analysis curve fitting Fracture (geology) Curve fitting crack propagation rate crack tip MATLAB business computer Motor vehicles. Aeronautics. Astronautics computer.programming_language Test data |
| Zdroj: | Xibei Gongye Daxue Xuebao, Vol 36, Iss 4, Pp 644-648 (2018) |
| ISSN: | 2609-7125 1000-2758 |
| DOI: | 10.1051/jnwpu/20183640644 |
| Popis: | In this paper, the fatigue crack propagation model of the metal structure is studied, and a new crack propagation rate model is proposed. Compared with the traditional method, only the nominal applied stress and the critical fracture stress are considered in the new method, and the new one is much easier and more efficient. By analyzing the 2024-T351 and 7075-T6 aluminum alloy materials test data, the new model is validated and the results are compared with the classical method of crack propagation. The result shows the new model has a similar trend with the existing crack propagation curve, and provides a better description for the low rate and high rate area, it also shows a strongly practicability. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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