The Effect of Residual Stress on the Process of Crack Growth Rate Determination in Polymer Pipes
| Autor: | Andreas Frank, Gerald Pinter, Jaroslav Kučera, Pavel Hutař, Jan Poduška, Jiří Sadílek, Luboš Náhlík |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Fracture mechanics 02 engineering and technology Polyethylene 021001 nanoscience & nanotechnology Condensed Matter Physics Crack growth resistance curve Atomic and Molecular Physics and Optics Finite element method Crack closure chemistry.chemical_compound 020303 mechanical engineering & transports 0203 mechanical engineering chemistry Residual stress mental disorders General Materials Science Growth rate Composite material 0210 nano-technology Stress intensity factor |
| Zdroj: | Solid State Phenomena. 258:174-177 |
| ISSN: | 1662-9779 |
| DOI: | 10.4028/www.scientific.net/ssp.258.174 |
| Popis: | Accelerated tests of the polyethylene pipes are necessary for the pipe lifetime calculations. Accepted methodology for prediction of slow crack grow rate in these materials is fatigue testing of CRB (cracked round bar) specimens. This paper deals with the FEM modelling of the crack propagation during the CRB test under the influence of residual stresses. The crack growth is described based on the stress intensity factor and Paris-Erdogan law. The purpose of this research is to determine, if the residual stress influences crack behavior during CRB test. |
| Databáze: | OpenAIRE |
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