Stress Intensity Factors of an Infinite Solid with Two Cavities having a Crack Emanating from the Cavity under Tension
| Autor: | Hironobu Nisitani, Keisuke Fukuyama, Takahiro Teranishi |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Materials science
business.industry Tension (physics) Mechanical Engineering Crack tip opening displacement Mechanics Structural engineering Elasticity (physics) Fatigue limit Stress (mechanics) Crack closure Mechanics of Materials General Materials Science business Stress intensity factor Stress concentration |
| Zdroj: | Key Engineering Materials. :669-674 |
| ISSN: | 1662-9795 |
| DOI: | 10.4028/www.scientific.net/kem.261-263.669 |
| Popis: | It is important to know the stress intensity factor of a circumferential crack emanating from the cavity, because in some cases the fatigue strength of metals is affected by the existence of an internal cavity or an inclusion. Recently a method for calculating the highly accurate values of stress intensity factors was proposed by H. Nisitani, based on the usefulness of the stress values at a crack tip calculated by FEM. This method is called the crack tip stress method. In this study, the crack tip stress method is applied to the problem of an infinite solid having two cavities with a circumferential crack emanating from the cavity subjected to tension. The accuracy of the crack tip stress method was discussed based on some values obtained by the body force method. Moreover, a simple method for calculating the stress intensity factor of this problem was presented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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