Limit load based evaluation of plastic η factor for C(T) specimen with a mismatched weld
Plastic η factor is adopted to account crack tip plasticity while evaluating the fracture toughness of the materials as per ASTM E1820. It is valid only for homogeneous materials. The plastic η factor for compact tension geometry (CT) with type 316LN stainless steel weld has been evaluated based on...
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| Language: | English |
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Gruppo Italiano Frattura
2019-03-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/2291 |
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| author | R Nikhil S A Krishnan G Sasikala A Moitra |
| author_facet | R Nikhil S A Krishnan G Sasikala A Moitra |
| author_sort | R Nikhil |
| collection | DOAJ |
| description | Plastic η factor is adopted to account crack tip plasticity while evaluating the fracture toughness of the materials as per ASTM E1820. It is valid only for homogeneous materials. The plastic η factor for compact tension geometry (CT) with type 316LN stainless steel weld has been evaluated based on elastic-plastic FE analysis. The incremental elastic-plastic material model with various values for strength mismatch level (M), from 1.2 to 2.2 has been considered for the weld. The weld width (h) parallel to the crack plane is varied from 4 mm to 16 mm. The η values thus obtained are analyzed and the inferences are discussed. |
| format | Article |
| id | doaj-art-856f0aa5d64b4d2cbf9422d8095b7847 |
| institution | DOAJ |
| issn | 1971-8993 |
| language | English |
| publishDate | 2019-03-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-856f0aa5d64b4d2cbf9422d8095b78472025-08-20T02:51:43ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932019-03-011348Limit load based evaluation of plastic η factor for C(T) specimen with a mismatched weldR Nikhil0S A Krishnan1G Sasikala2A Moitra3Materials development and Technology Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, Tamil Nadu, IndiaIndira Gandhi Centre for Atomic ResearchIndira Gandhi Centre for Atomic ResearchIndira Gandhi Centre for Atomic ResearchPlastic η factor is adopted to account crack tip plasticity while evaluating the fracture toughness of the materials as per ASTM E1820. It is valid only for homogeneous materials. The plastic η factor for compact tension geometry (CT) with type 316LN stainless steel weld has been evaluated based on elastic-plastic FE analysis. The incremental elastic-plastic material model with various values for strength mismatch level (M), from 1.2 to 2.2 has been considered for the weld. The weld width (h) parallel to the crack plane is varied from 4 mm to 16 mm. The η values thus obtained are analyzed and the inferences are discussed.https://www.fracturae.com/index.php/fis/article/view/2291Limit LoadEtastrength mismatch |
| spellingShingle | R Nikhil S A Krishnan G Sasikala A Moitra Limit load based evaluation of plastic η factor for C(T) specimen with a mismatched weld Fracture and Structural Integrity Limit Load Eta strength mismatch |
| title | Limit load based evaluation of plastic η factor for C(T) specimen with a mismatched weld |
| title_full | Limit load based evaluation of plastic η factor for C(T) specimen with a mismatched weld |
| title_fullStr | Limit load based evaluation of plastic η factor for C(T) specimen with a mismatched weld |
| title_full_unstemmed | Limit load based evaluation of plastic η factor for C(T) specimen with a mismatched weld |
| title_short | Limit load based evaluation of plastic η factor for C(T) specimen with a mismatched weld |
| title_sort | limit load based evaluation of plastic η factor for c t specimen with a mismatched weld |
| topic | Limit Load Eta strength mismatch |
| url | https://www.fracturae.com/index.php/fis/article/view/2291 |
| work_keys_str_mv | AT rnikhil limitloadbasedevaluationofplasticēfactorforctspecimenwithamismatchedweld AT sakrishnan limitloadbasedevaluationofplasticēfactorforctspecimenwithamismatchedweld AT gsasikala limitloadbasedevaluationofplasticēfactorforctspecimenwithamismatchedweld AT amoitra limitloadbasedevaluationofplasticēfactorforctspecimenwithamismatchedweld |