Stress Intensity Factors Evaluated from Discontinuous Displacements along a Slant Crack with a Center-Hole Notch
| Autor: | Toshitsugu Onoe, Kazuo Honda, Tashiyuki Torii |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Residual Stress
Notch Materials science business.industry Fracture Mechanics Mechanical Engineering Effective stress Crack tip opening displacement Structural engineering Crack growth resistance curve Crack closure Mechanics of Materials Stress Intensity Factor mental disorders Ultimate tensile strength General Materials Science Mixed-Mode Crack Composite material business Fatigue Intensity (heat transfer) Stress intensity factor Discontinuous Crack Displacement Stress concentration |
| Zdroj: | TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A. 61:1225-1231 |
| ISSN: | 1884-8338 0387-5008 |
| DOI: | 10.1299/kikaia.61.1225 |
| Popis: | For cracks with a center-hole notch under the mixed-mode condition, a method is proposed in which the stress intensity factor can be directly evaluated from the discontinuous crack displacement, thus representing effective stress intensity factors. Using this method, the effect of crack surface roughness on the stress intensity factors K_I (mode I) and K_ (mode II) was discussed especially in relation to the crack surface contact of the slant-annealed crack under tensile loading, where crack opening (or closing) was estimated to be induced gradually during loading (or unloading). Also, it was found that the residual plastic layer in the wake of the fatigue propagation crack reduced the stress intensity factors K_I and K_ determined from the discontinuous displacement along the slant crack with a center-hole notch under tensile loading. |
| Databáze: | OpenAIRE |
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