Estimation of fatigue strength under multiaxial cyclic loading by varying the critical plane orientation
The main purpose of this paper is to examine the influence of the critical plane orientation on the estimated fatigue strength of metals under multiaxial loading. The algorithm employed to evaluate fatigue strength implements the criterion of maximum normal and shear stress on a suitable damage plan...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2016-06-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/1740 |
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| _version_ | 1841562335348523008 |
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| author | Marta Kurek Tadeusz ?agoda Andrea Carpinteri Sabrina Vantadori |
| author_facet | Marta Kurek Tadeusz ?agoda Andrea Carpinteri Sabrina Vantadori |
| author_sort | Marta Kurek |
| collection | DOAJ |
| description | The main purpose of this paper is to examine the influence of the critical plane orientation on the estimated fatigue strength of metals under multiaxial loading. The algorithm employed to evaluate fatigue strength implements the criterion of maximum normal and shear stress on a suitable damage plane (critical plane). The angle beta defining the critical plane orientation is measured with respect to the direction that maximises the applied normal stress. Eleven (11) structural materials under combined bending and torsion cyclic loading are examined. For each analysed material, the value of beta angle is selected so that the value of the scatter, defined by a root-mean-square value, is minimum. On the basis of such a calculation, an empirical expression for beta is proposed, that takes into account the values of bending and torsion fatigue strengths at a reference number of loading cycles. According to such an expression, beta is constant for a given material. |
| format | Article |
| id | doaj-art-b341eb414cff4dcbb87125f4031f567c |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2016-06-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-b341eb414cff4dcbb87125f4031f567c2025-01-03T01:03:07ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932016-06-011037Estimation of fatigue strength under multiaxial cyclic loading by varying the critical plane orientationMarta KurekTadeusz ?agodaAndrea CarpinteriSabrina VantadoriThe main purpose of this paper is to examine the influence of the critical plane orientation on the estimated fatigue strength of metals under multiaxial loading. The algorithm employed to evaluate fatigue strength implements the criterion of maximum normal and shear stress on a suitable damage plane (critical plane). The angle beta defining the critical plane orientation is measured with respect to the direction that maximises the applied normal stress. Eleven (11) structural materials under combined bending and torsion cyclic loading are examined. For each analysed material, the value of beta angle is selected so that the value of the scatter, defined by a root-mean-square value, is minimum. On the basis of such a calculation, an empirical expression for beta is proposed, that takes into account the values of bending and torsion fatigue strengths at a reference number of loading cycles. According to such an expression, beta is constant for a given material.https://www.fracturae.com/index.php/fis/article/view/1740critical planefatigue strengthmultiaxial loading |
| spellingShingle | Marta Kurek Tadeusz ?agoda Andrea Carpinteri Sabrina Vantadori Estimation of fatigue strength under multiaxial cyclic loading by varying the critical plane orientation Fracture and Structural Integrity critical plane fatigue strength multiaxial loading |
| title | Estimation of fatigue strength under multiaxial cyclic loading by varying the critical plane orientation |
| title_full | Estimation of fatigue strength under multiaxial cyclic loading by varying the critical plane orientation |
| title_fullStr | Estimation of fatigue strength under multiaxial cyclic loading by varying the critical plane orientation |
| title_full_unstemmed | Estimation of fatigue strength under multiaxial cyclic loading by varying the critical plane orientation |
| title_short | Estimation of fatigue strength under multiaxial cyclic loading by varying the critical plane orientation |
| title_sort | estimation of fatigue strength under multiaxial cyclic loading by varying the critical plane orientation |
| topic | critical plane fatigue strength multiaxial loading |
| url | https://www.fracturae.com/index.php/fis/article/view/1740 |
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