Practical considerations of the use of cross-weld and compact tension specimens creep data
This article gives an overview of the use of cross-weld and compact tension specimen modelling and analyses data to characterise creep behaviour of the high-temperature components. Cross-weld and compact tension specimens are used to describe creep crack growth in heterogeneous material structures,...
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| Format: | Article |
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SAGE
2016
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| Online Access: | https://eprints.nottingham.ac.uk/35546/ |
| _version_ | 1848795103833882624 |
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| author | Petkov, Markian P. Hyde, Christopher J. Hyde, Thomas H. |
| author_facet | Petkov, Markian P. Hyde, Christopher J. Hyde, Thomas H. |
| author_sort | Petkov, Markian P. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This article gives an overview of the use of cross-weld and compact tension specimen modelling and analyses data to characterise creep behaviour of the high-temperature components. Cross-weld and compact tension specimens are used to describe creep crack growth in heterogeneous material structures, such as welds, and a number of factors that affect the creep behaviour of the structure, associated with this heterogeneity, have been identified. Creep data obtained from cross-weld specimen modelling are substantially affected by the material model used (e.g. Norton power law, Liu-Murakami), stress singularities that arise at the material interfaces and in between the columnar and equiaxed zones of the weld material, residual stresses which arise through the thickness of a multi-pass weld and the extraction orientation of the specimen relative to the welding direction. Creep crack growth data obtained from compact tension specimen testing and analyses are strongly dependent on the material models used (isotropic hardening models, Norton creep law, Liu/Murakami model, etc.), the path dependence of the C*-contour integral fracture parameter for certain heterogeneous material configurations and the accurate computation of material constants for damage mechanics models and the agreement between loading state to the actual stress state of the component to which the compact tension specimen creep data are applied to. This study examines typical results and observations from cross-weld specimen and compact tension specimen creep analyses, identifying the advantages, disadvantages and limitations of each specimen procedure. |
| first_indexed | 2025-11-14T19:26:46Z |
| format | Article |
| id | nottingham-35546 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:26:46Z |
| publishDate | 2016 |
| publisher | SAGE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-355462020-05-04T17:47:57Z https://eprints.nottingham.ac.uk/35546/ Practical considerations of the use of cross-weld and compact tension specimens creep data Petkov, Markian P. Hyde, Christopher J. Hyde, Thomas H. This article gives an overview of the use of cross-weld and compact tension specimen modelling and analyses data to characterise creep behaviour of the high-temperature components. Cross-weld and compact tension specimens are used to describe creep crack growth in heterogeneous material structures, such as welds, and a number of factors that affect the creep behaviour of the structure, associated with this heterogeneity, have been identified. Creep data obtained from cross-weld specimen modelling are substantially affected by the material model used (e.g. Norton power law, Liu-Murakami), stress singularities that arise at the material interfaces and in between the columnar and equiaxed zones of the weld material, residual stresses which arise through the thickness of a multi-pass weld and the extraction orientation of the specimen relative to the welding direction. Creep crack growth data obtained from compact tension specimen testing and analyses are strongly dependent on the material models used (isotropic hardening models, Norton creep law, Liu/Murakami model, etc.), the path dependence of the C*-contour integral fracture parameter for certain heterogeneous material configurations and the accurate computation of material constants for damage mechanics models and the agreement between loading state to the actual stress state of the component to which the compact tension specimen creep data are applied to. This study examines typical results and observations from cross-weld specimen and compact tension specimen creep analyses, identifying the advantages, disadvantages and limitations of each specimen procedure. SAGE 2016-04-03 Article PeerReviewed Petkov, Markian P., Hyde, Christopher J. and Hyde, Thomas H. (2016) Practical considerations of the use of cross-weld and compact tension specimens creep data. Journal of Strain Analysis for Engineering Design, 51 (3). pp. 179-206. ISSN 0309-3247 Creep; creep data; cross-weld; compact tension; creep crack growth; C*-integral; damage mechanics; fracture http://sdj.sagepub.com/content/51/3/179.abstract doi:10.1177/0309324715627575 doi:10.1177/0309324715627575 |
| spellingShingle | Creep; creep data; cross-weld; compact tension; creep crack growth; C*-integral; damage mechanics; fracture Petkov, Markian P. Hyde, Christopher J. Hyde, Thomas H. Practical considerations of the use of cross-weld and compact tension specimens creep data |
| title | Practical considerations of the use of cross-weld and compact tension specimens creep data |
| title_full | Practical considerations of the use of cross-weld and compact tension specimens creep data |
| title_fullStr | Practical considerations of the use of cross-weld and compact tension specimens creep data |
| title_full_unstemmed | Practical considerations of the use of cross-weld and compact tension specimens creep data |
| title_short | Practical considerations of the use of cross-weld and compact tension specimens creep data |
| title_sort | practical considerations of the use of cross-weld and compact tension specimens creep data |
| topic | Creep; creep data; cross-weld; compact tension; creep crack growth; C*-integral; damage mechanics; fracture |
| url | https://eprints.nottingham.ac.uk/35546/ https://eprints.nottingham.ac.uk/35546/ https://eprints.nottingham.ac.uk/35546/ |