Mode III critical distance determination with optimized V-notched specimen under torsional fatigue and size effects on the inverse search probability distribution
| Autor: | M. Pedranz, Ciro Santus, Matteo Benedetti, Filippo Berto |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Critical distance
Materials science Parametric analysis Mechanical Engineering Mathematical analysis Mode (statistics) Inverse Industrial and Manufacturing Engineering Standard deviation Normal distribution Distribution (mathematics) Mechanics of Materials Modeling and Simulation Probability distribution General Materials Science |
| Zdroj: | International Journal of Fatigue. 151:106351 |
| ISSN: | 0142-1123 |
| DOI: | 10.1016/j.ijfatigue.2021.106351 |
| Popis: | An optimized V-notched specimen is proposed for the determination of mode III, or torsional, critical distance. Numerical procedures are provided for the inverse determination of this length, and then for a statistical analysis of the resulting skew-normal distribution, as obtained from (symmetric) normal distributions of the plain and notched specimen strengths. An experimental example is shown on steel 42CrMo4 + QT, with clear evidence of a significantly larger mode III critical distance than mode I. A parametric analysis is then presented to evaluate the effects of size of the specimen on the standard deviation of the inverse search critical distance probability distribution. |
| Databáze: | OpenAIRE |
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