Investigation on Stress and Strain of Ni-Based Single Crystal Super-Alloy Specimen with Single Hole Based on Abacus
| Autor: | Zhi Xun Wen, Wen Xian Li, Xiang Zhen Xue |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Mechanical Engineering Stress–strain curve technology industry and agriculture 02 engineering and technology 021001 nanoscience & nanotechnology Finite element method Superalloy 020303 mechanical engineering & transports 0203 mechanical engineering Abacus (architecture) Mechanics of Materials Single hole General Materials Science Composite material 0210 nano-technology Single crystal |
| Zdroj: | Key Engineering Materials. 891:17-22 |
| ISSN: | 1662-9795 |
| Popis: | The Miss stress, Max.principal strain and Magnitude displacement have important influence on the fatigue life of the Ni-based single crystal super-alloy turbine blades. This work investigated The Miss stress, Max.principal strain and Magnitude displacement of Ni-based single crystal super-alloy specimen with single hole along dangerous path under different working conditions by Abacus. The results show that the initial crack length and loading stresses are larger, the crack growth on the specimen is faster, and then, the fatigue life is the shorter. Moreover, for the different stress ratios, smaller stress ratio can lead to lower fatigue life. The result is significant to design turbine of Ni-based single crystal super-alloy of high accuracy, high reliability and high strength. |
| Databáze: | OpenAIRE |
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