Mechanical examination of crack length dependency and material dependency on threshold stress intensity factor range with Dugdale model
| Autor: | Naoki Fukumura, Hiroshi Noguchi, Tomohiro Suzuki, Kaneaki Tsuzaki, Shigeru Hamada |
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| Rok vydání: | 2015 |
| Předmět: |
Dependency (UML)
Materials science business.industry Mechanical Engineering Threshold stress Thermodynamics Modulus Structural engineering Poisson distribution Strength of materials Crack closure symbols.namesake Mechanics of Materials Range (statistics) symbols General Materials Science Intensity factor business |
| Zdroj: | Engineering Fracture Mechanics. 135:168-186 |
| ISSN: | 0013-7944 |
| DOI: | 10.1016/j.engfracmech.2015.01.003 |
| Popis: | The threshold stress intensity factor range Δ K th was analytically calculated under stress control conditions using the plasticity-induced crack closure analysis with the Dugdale model. Before obtaining Δ K th , the accuracy of the method was verified. The characteristics of the crack closure behavior were discussed by specifying the small-scale yielding (SSY) and large-scale yielding (LSY). The analysis results of Δ K th were discussed systematically by non-dimensionalizing them with the Dugdale model. Under the SSY condition, Δ K th was dependent on Young’s modulus and Poisson’s ratio. Under the LSY condition, Δ K th increased when the initial crack length or yield strain increased. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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