A comparison of methods for calculating notch tip strains and stresses under multiaxial loading
Selected methods for calculating notch tip strains and stresses in elastic–plastic isotropic bodies subjected to multiaxial monotonic loading were compared. The methods use sets of equations where hypothetical notch tip elastic strains and stresses obtained from FEM calculations serve as an input. T...
| Автори: | , , |
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| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Gruppo Italiano Frattura
2016-10-01
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| Серія: | Fracture and Structural Integrity |
| Предмети: | |
| Онлайн доступ: | https://www.fracturae.com/index.php/fis/article/view/1794 |
| _version_ | 1826953677217202176 |
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| author | M. Lutovinov J. ?erný J. Papuga |
| author_facet | M. Lutovinov J. ?erný J. Papuga |
| author_sort | M. Lutovinov |
| collection | DOAJ |
| description | Selected methods for calculating notch tip strains and stresses in elastic–plastic isotropic bodies subjected to multiaxial monotonic loading were compared. The methods use sets of equations where hypothetical notch tip elastic strains and stresses obtained from FEM calculations serve as an input. The comparison was performed within two separate groups of methods: the first group consists of the methods intended for cases of multiaxial proportional loading and the second group deals with multiaxial non-proportional loading. Originally, the precision of the methods was validated by comparison with results obtained from elastic–plastic FEM analyses. Since computer performance at the time was lower than nowadays, verification of the proposed methods on FEM models with a finer mesh was needed. Such verification was carried out and is presented in this paper. The effect of various formulations of material stress–strain curve was also evaluated. |
| first_indexed | 2025-02-17T23:25:36Z |
| format | Article |
| id | doaj.art-b9a3efee9f004d2e9eb1b92e2d9cfc2a |
| institution | Directory Open Access Journal |
| issn | 1971-8993 |
| language | English |
| last_indexed | 2025-02-17T23:25:36Z |
| publishDate | 2016-10-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj.art-b9a3efee9f004d2e9eb1b92e2d9cfc2a2024-12-02T05:42:34ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932016-10-011038A comparison of methods for calculating notch tip strains and stresses under multiaxial loadingM. LutovinovJ. ?ernýJ. PapugaSelected methods for calculating notch tip strains and stresses in elastic–plastic isotropic bodies subjected to multiaxial monotonic loading were compared. The methods use sets of equations where hypothetical notch tip elastic strains and stresses obtained from FEM calculations serve as an input. The comparison was performed within two separate groups of methods: the first group consists of the methods intended for cases of multiaxial proportional loading and the second group deals with multiaxial non-proportional loading. Originally, the precision of the methods was validated by comparison with results obtained from elastic–plastic FEM analyses. Since computer performance at the time was lower than nowadays, verification of the proposed methods on FEM models with a finer mesh was needed. Such verification was carried out and is presented in this paper. The effect of various formulations of material stress–strain curve was also evaluated.https://www.fracturae.com/index.php/fis/article/view/1794Notch stressesMultiaxial loadingFEMNeuber’s ruleESED rule |
| spellingShingle | M. Lutovinov J. ?erný J. Papuga A comparison of methods for calculating notch tip strains and stresses under multiaxial loading Fracture and Structural Integrity Notch stresses Multiaxial loading FEM Neuber’s rule ESED rule |
| title | A comparison of methods for calculating notch tip strains and stresses under multiaxial loading |
| title_full | A comparison of methods for calculating notch tip strains and stresses under multiaxial loading |
| title_fullStr | A comparison of methods for calculating notch tip strains and stresses under multiaxial loading |
| title_full_unstemmed | A comparison of methods for calculating notch tip strains and stresses under multiaxial loading |
| title_short | A comparison of methods for calculating notch tip strains and stresses under multiaxial loading |
| title_sort | comparison of methods for calculating notch tip strains and stresses under multiaxial loading |
| topic | Notch stresses Multiaxial loading FEM Neuber’s rule ESED rule |
| url | https://www.fracturae.com/index.php/fis/article/view/1794 |
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