Crack growth analysis and remaining life prediction of dissimilar metal pipe weld joint with circumferential crack under cyclic loading
Fatigue crack growth model has been developed for dissimilar metal weld joints of a piping component under cyclic loading, where in the crack is located at the center of the weld in the circumferential direction. The fracture parameter, Stress Intensity Factor (SIF) has been computed by using princi...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-12-01
|
| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573320304228 |
| _version_ | 1819000727132962816 |
|---|---|
| author | A. Ramachandra Murthy P. Gandhi S. Vishnuvardhan G. Sudharshan |
| author_facet | A. Ramachandra Murthy P. Gandhi S. Vishnuvardhan G. Sudharshan |
| author_sort | A. Ramachandra Murthy |
| collection | DOAJ |
| description | Fatigue crack growth model has been developed for dissimilar metal weld joints of a piping component under cyclic loading, where in the crack is located at the center of the weld in the circumferential direction. The fracture parameter, Stress Intensity Factor (SIF) has been computed by using principle of superposition as KH + KM. KH is evaluated by assuming that, the complete specimen is made of the material containing the notch location. In second stage, the stress field ahead of the crack tip, accounting for the strength mismatch, the applied load and geometry has been characterized to evaluate SIF (KM). For each incremental crack depth, stress field ahead of the crack tip has been quantified by using J-integral (elastic), mismatch ratio, plastic interaction factor and stress parallel to the crack surface. The associated constants for evaluation of KM have been computed by using the quantified stress field with respect to the distance from the crack tip. Net SIF (KH + KM) computed, has been used for the crack growth analysis and remaining life prediction by Paris crack growth model. To validate the model, SIF and remaining life has been predicted for a pipe made up of (i) SA312 Type 304LN austenitic stainless steel and SA508 Gr. 3 Cl. 1. Low alloy carbon steel (ii) welded SA312 Type 304LN austenitic stainless-steel pipe. From the studies, it is observed that the model could predict the remaining life of DMWJ piping components with a maximum difference of 15% compared to experimental observations. |
| first_indexed | 2024-12-20T22:37:54Z |
| format | Article |
| id | doaj.art-31fef966f5bd46d896e2ade7c13f4e9f |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-12-20T22:37:54Z |
| publishDate | 2020-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-31fef966f5bd46d896e2ade7c13f4e9f2022-12-21T19:24:33ZengElsevierNuclear Engineering and Technology1738-57332020-12-01521229492957Crack growth analysis and remaining life prediction of dissimilar metal pipe weld joint with circumferential crack under cyclic loadingA. Ramachandra Murthy0P. Gandhi1S. Vishnuvardhan2G. Sudharshan3Corresponding author.; CSIR-Structural Engineering Research Centre, Taramani, Chennai, 600113, IndiaCSIR-Structural Engineering Research Centre, Taramani, Chennai, 600113, IndiaCSIR-Structural Engineering Research Centre, Taramani, Chennai, 600113, IndiaCSIR-Structural Engineering Research Centre, Taramani, Chennai, 600113, IndiaFatigue crack growth model has been developed for dissimilar metal weld joints of a piping component under cyclic loading, where in the crack is located at the center of the weld in the circumferential direction. The fracture parameter, Stress Intensity Factor (SIF) has been computed by using principle of superposition as KH + KM. KH is evaluated by assuming that, the complete specimen is made of the material containing the notch location. In second stage, the stress field ahead of the crack tip, accounting for the strength mismatch, the applied load and geometry has been characterized to evaluate SIF (KM). For each incremental crack depth, stress field ahead of the crack tip has been quantified by using J-integral (elastic), mismatch ratio, plastic interaction factor and stress parallel to the crack surface. The associated constants for evaluation of KM have been computed by using the quantified stress field with respect to the distance from the crack tip. Net SIF (KH + KM) computed, has been used for the crack growth analysis and remaining life prediction by Paris crack growth model. To validate the model, SIF and remaining life has been predicted for a pipe made up of (i) SA312 Type 304LN austenitic stainless steel and SA508 Gr. 3 Cl. 1. Low alloy carbon steel (ii) welded SA312 Type 304LN austenitic stainless-steel pipe. From the studies, it is observed that the model could predict the remaining life of DMWJ piping components with a maximum difference of 15% compared to experimental observations.http://www.sciencedirect.com/science/article/pii/S1738573320304228Dissimilar metal weld jointPiping componentCrack tip constraintStress intensity factorRemaining life |
| spellingShingle | A. Ramachandra Murthy P. Gandhi S. Vishnuvardhan G. Sudharshan Crack growth analysis and remaining life prediction of dissimilar metal pipe weld joint with circumferential crack under cyclic loading Nuclear Engineering and Technology Dissimilar metal weld joint Piping component Crack tip constraint Stress intensity factor Remaining life |
| title | Crack growth analysis and remaining life prediction of dissimilar metal pipe weld joint with circumferential crack under cyclic loading |
| title_full | Crack growth analysis and remaining life prediction of dissimilar metal pipe weld joint with circumferential crack under cyclic loading |
| title_fullStr | Crack growth analysis and remaining life prediction of dissimilar metal pipe weld joint with circumferential crack under cyclic loading |
| title_full_unstemmed | Crack growth analysis and remaining life prediction of dissimilar metal pipe weld joint with circumferential crack under cyclic loading |
| title_short | Crack growth analysis and remaining life prediction of dissimilar metal pipe weld joint with circumferential crack under cyclic loading |
| title_sort | crack growth analysis and remaining life prediction of dissimilar metal pipe weld joint with circumferential crack under cyclic loading |
| topic | Dissimilar metal weld joint Piping component Crack tip constraint Stress intensity factor Remaining life |
| url | http://www.sciencedirect.com/science/article/pii/S1738573320304228 |
| work_keys_str_mv | AT aramachandramurthy crackgrowthanalysisandremaininglifepredictionofdissimilarmetalpipeweldjointwithcircumferentialcrackundercyclicloading AT pgandhi crackgrowthanalysisandremaininglifepredictionofdissimilarmetalpipeweldjointwithcircumferentialcrackundercyclicloading AT svishnuvardhan crackgrowthanalysisandremaininglifepredictionofdissimilarmetalpipeweldjointwithcircumferentialcrackundercyclicloading AT gsudharshan crackgrowthanalysisandremaininglifepredictionofdissimilarmetalpipeweldjointwithcircumferentialcrackundercyclicloading |