Two-parameter fracture characterization of a welded pipe in the presence of residual stresses
| dc.cclicence | CC-BY-NC-ND | en |
| dc.contributor.author | Zahedi, S. A. | en |
| dc.contributor.author | Jivkov, Andrey | en |
| dc.date.accessioned | 2017-10-24T10:57:52Z | |
| dc.date.available | 2017-10-24T10:57:52Z | |
| dc.date.issued | 2016-07-21 | |
| dc.description | The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link. | en |
| dc.description.abstract | In this paper two-parameter fracture characterization of elastic and elastic-plastic stress/strain field around a crack front is presented for a welded pipe component containing a circumferential through-thickness crack. A macro function programmed in PYTHON is used to compute the constraint parameters (T-stress, Tz and Q factors) of the specimen in the open source finite element package Code_Aster. Data obtained from literature was employed to support three-dimensional finite element models developed in this research to study the impact of high magnitude repair-weld residual stresses. Complete distributions of the Tstress, Tz and Q-factors were obtained along a 3D crack front in the presence of residual stresses. The effects of stresses (residual and operational) on the constraint parameters are studied. It is shown that a two-parameter methodology provides effective characterization of three dimensional elastic–plastic crack tips constraint. | en |
| dc.exception.reason | open access article | en |
| dc.funder | N/A | en |
| dc.identifier.citation | Zahedi, S. A. and Jivkov, A. (2016) Two-parameter fracture characterization of a welded pipe in the presence of residual stresses. Procedia Structural Integrity, 2, pp. 777-784 | en |
| dc.identifier.doi | https://doi.org/10.1016/j.prostr.2016.06.100 | |
| dc.identifier.uri | http://hdl.handle.net/2086/14690 | |
| dc.language.iso | en | en |
| dc.projectid | N/A | en |
| dc.publisher | Elsevier | en |
| dc.subject | constraint parameters | en |
| dc.subject | T-stress | en |
| dc.subject | Tz -factor | en |
| dc.subject | Q-factor | en |
| dc.subject | residual stress | en |
| dc.title | Two-parameter fracture characterization of a welded pipe in the presence of residual stresses | en |
| dc.type | Article | en |