Estimation of <i>C*</i> Integral for Mismatched Welded Compact Tension Specimen
The <i>C*</i> integral for the compact tension (CT) specimen is calculated using the estimation equation in ASTM E1457-15. This equation was developed based on the assumption of material homogeneity and is not applicable to a welded CT specimen. In this paper, a modified equation for est...
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MDPI AG
2021-12-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/24/7491 |
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| author | Marko Katinić Dorian Turk Pejo Konjatić Dražan Kozak |
| author_facet | Marko Katinić Dorian Turk Pejo Konjatić Dražan Kozak |
| author_sort | Marko Katinić |
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| description | The <i>C*</i> integral for the compact tension (CT) specimen is calculated using the estimation equation in ASTM E1457-15. This equation was developed based on the assumption of material homogeneity and is not applicable to a welded CT specimen. In this paper, a modified equation for estimating the <i>C*</i> integral for a welded compact tension (CT) specimen under creep conditions is proposed. The proposed equation is defined on the basis of systematically conducted extensive finite element (FE) analyses using the ABAQUS program. A crack in the welded CT specimen is located in the center of the heat-affected zone (HAZ), because the most severe type IV cracks are located in the HAZ. The results obtained by the analysis show that the equation for estimating the <i>C*</i> integral in ASTM E1457-15 can underestimate the value of the <i>C*</i> integral for creep-soft HAZ and overestimate for creep-hard HAZ. Therefore, the proposed modified equation is suitable for describing the creep crack growth (CCG) of welded specimens. |
| first_indexed | 2024-03-10T03:41:17Z |
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| id | doaj.art-ac1fa4a83d91446c908f2a9e748593bb |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T03:41:17Z |
| publishDate | 2021-12-01 |
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| spelling | doaj.art-ac1fa4a83d91446c908f2a9e748593bb2023-11-23T09:18:41ZengMDPI AGMaterials1996-19442021-12-011424749110.3390/ma14247491Estimation of <i>C*</i> Integral for Mismatched Welded Compact Tension SpecimenMarko Katinić0Dorian Turk1Pejo Konjatić2Dražan Kozak3Mechanical Engineering Faculty, University of Slavonski Brod, Trg Ivane Brlic Mazuranic 2, 35000 Slavonski Brod, CroatiaMechanical Engineering Faculty, University of Slavonski Brod, Trg Ivane Brlic Mazuranic 2, 35000 Slavonski Brod, CroatiaMechanical Engineering Faculty, University of Slavonski Brod, Trg Ivane Brlic Mazuranic 2, 35000 Slavonski Brod, CroatiaMechanical Engineering Faculty, University of Slavonski Brod, Trg Ivane Brlic Mazuranic 2, 35000 Slavonski Brod, CroatiaThe <i>C*</i> integral for the compact tension (CT) specimen is calculated using the estimation equation in ASTM E1457-15. This equation was developed based on the assumption of material homogeneity and is not applicable to a welded CT specimen. In this paper, a modified equation for estimating the <i>C*</i> integral for a welded compact tension (CT) specimen under creep conditions is proposed. The proposed equation is defined on the basis of systematically conducted extensive finite element (FE) analyses using the ABAQUS program. A crack in the welded CT specimen is located in the center of the heat-affected zone (HAZ), because the most severe type IV cracks are located in the HAZ. The results obtained by the analysis show that the equation for estimating the <i>C*</i> integral in ASTM E1457-15 can underestimate the value of the <i>C*</i> integral for creep-soft HAZ and overestimate for creep-hard HAZ. Therefore, the proposed modified equation is suitable for describing the creep crack growth (CCG) of welded specimens.https://www.mdpi.com/1996-1944/14/24/7491creep<i>C*</i> integralmismatched weldCT specimenfinite element analysis |
| spellingShingle | Marko Katinić Dorian Turk Pejo Konjatić Dražan Kozak Estimation of <i>C*</i> Integral for Mismatched Welded Compact Tension Specimen Materials creep <i>C*</i> integral mismatched weld CT specimen finite element analysis |
| title | Estimation of <i>C*</i> Integral for Mismatched Welded Compact Tension Specimen |
| title_full | Estimation of <i>C*</i> Integral for Mismatched Welded Compact Tension Specimen |
| title_fullStr | Estimation of <i>C*</i> Integral for Mismatched Welded Compact Tension Specimen |
| title_full_unstemmed | Estimation of <i>C*</i> Integral for Mismatched Welded Compact Tension Specimen |
| title_short | Estimation of <i>C*</i> Integral for Mismatched Welded Compact Tension Specimen |
| title_sort | estimation of i c i integral for mismatched welded compact tension specimen |
| topic | creep <i>C*</i> integral mismatched weld CT specimen finite element analysis |
| url | https://www.mdpi.com/1996-1944/14/24/7491 |
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