On the effects of unilateral boundary conditions on the crack growth rate under cycling bending loads
| Autor: | Luca Esposito, Davide Leonetti, Giovanni Pio Pucillo |
|---|---|
| Přispěvatelé: | Pucillo, Giovanni Pio, Esposito, Luca, Leonetti, Davide, Aluminium Structures |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
02 engineering and technology Industrial and Manufacturing Engineering Crack closure 0203 mechanical engineering mental disorders General Materials Science Boundary value problem Growth rate Fillet (mechanics) Design stage SIF business.industry Mechanical Engineering Fracture mechanics Structural engineering Paris' law 021001 nanoscience & nanotechnology Virtual Crack Closure Technique SIF Fatigue Crack Growth LEFM Finite Element Method Finite element method 020303 mechanical engineering & transports Virtual Crack Closure Technique Mechanics of Materials Modeling and Simulation Finite Element Method Fatigue Crack Growth 0210 nano-technology business LEFM |
| Zdroj: | International Journal of Fatigue, 124, 245-252. Elsevier |
| ISSN: | 0142-1123 |
| DOI: | 10.1016/j.ijfatigue.2019.02.038 |
| Popis: | Sometimes, structural components experience service conditions that have not taken into account at the design stage. In this study, the effects of the boundary conditions on the crack propagation life have been evaluated using the modified Virtual Crack Closure Technique for a surface crack existing at the root of a shoulder fillet notch in a circular stepped bar under bending. The results show that the presence of a unilateral boundary condition at the shoulder fillet notch significantly influences the SIF’s and therefore the number of cycles to failure, but the shape of the crack front does not change during propagation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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