Interpretation of Plasticity Effects Using the CJP Crack Tip Field Model
| Autor: | Eann A. Patterson, Colin Christopher, M. Neil James, J.M. Vasco-Olmo, Toshifumi Kakiuchi, Francisco Alberto Díaz Garrido |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Crack tip opening displacement 02 engineering and technology Mechanics Wake Plasticity Condensed Matter Physics Crack growth resistance curve Atomic and Molecular Physics and Optics 020501 mining & metallurgy Crack closure 020303 mechanical engineering & transports 0205 materials engineering 0203 mechanical engineering Forensic engineering General Materials Science Stress intensity factor Strain gauge Stress concentration |
| Zdroj: | Solid State Phenomena |
| ISSN: | 1662-9779 |
| DOI: | 10.4028/www.scientific.net/ssp.258.117 |
| Popis: | This paper will outline the development of a model of crack tip fields that represents an innovation in incorporate the influences on crack tip displacement and stress fields of the zone of local plasticity that envelops a growing fatigue crack. The model uses assumed distributions of elastic stresses induced at the elastic-plastic boundary via wake contact and compatibility requirements, and defines a set of modified elastic stress intensity factors to characterise the crack stress or displacement tip field. In particular, recent work will be presented that compares the interpretation of plasticity-induced shielding obtained from trends observed in KR and KF with values of so-called ‘crack closure’ obtained via traditional strain gauge determination. |
| Databáze: | OpenAIRE |
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