Application of the Moment Of Inertia method to the Critical-Plane Approach
The Moment-Of-Inertia (MOI) method has been proposed by the authors to solve some of the shortcomings of convex-enclosure methods, when they are used to calculate path-equivalent ranges and mean components of complex non-proportional (NP) multiaxial load histories. In the proposed 2D version for use...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2016-10-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/1775 |
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| author | Hao Wu Marco Antonio Meggiolaro Jaime Tupiassú Pinho de Castro |
| author_facet | Hao Wu Marco Antonio Meggiolaro Jaime Tupiassú Pinho de Castro |
| author_sort | Hao Wu |
| collection | DOAJ |
| description | The Moment-Of-Inertia (MOI) method has been proposed by the authors to solve some of the shortcomings of convex-enclosure methods, when they are used to calculate path-equivalent ranges and mean components of complex non-proportional (NP) multiaxial load histories. In the proposed 2D version for use with critical-plane models, the MOI method considers the non-proportionality of the projected shear-shear history on each candidate plane through the shape of the load path, providing good results even for challenging non-convex paths. The MOI-calculated path-equivalent shear stress (or strain) ranges from each counted load event can then be used in any shear-based critical-plane multiaxial fatigue damage model, such as Findley’s or Fatemi-Socie’s. An efficient computer code with the shear-shear version of the MOI algorithm is also provided in this work. KEYWORDS. Multiaxial fatigue; Non-proportional loadings; Equivalent ranges; Critical-Plane Approach. |
| format | Article |
| id | doaj-art-0535bde666014c40a11bfc58c8bfddc8 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2016-10-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-0535bde666014c40a11bfc58c8bfddc82025-01-03T00:39:59ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932016-10-011038Application of the Moment Of Inertia method to the Critical-Plane ApproachHao WuMarco Antonio MeggiolaroJaime Tupiassú Pinho de CastroThe Moment-Of-Inertia (MOI) method has been proposed by the authors to solve some of the shortcomings of convex-enclosure methods, when they are used to calculate path-equivalent ranges and mean components of complex non-proportional (NP) multiaxial load histories. In the proposed 2D version for use with critical-plane models, the MOI method considers the non-proportionality of the projected shear-shear history on each candidate plane through the shape of the load path, providing good results even for challenging non-convex paths. The MOI-calculated path-equivalent shear stress (or strain) ranges from each counted load event can then be used in any shear-based critical-plane multiaxial fatigue damage model, such as Findley’s or Fatemi-Socie’s. An efficient computer code with the shear-shear version of the MOI algorithm is also provided in this work. KEYWORDS. Multiaxial fatigue; Non-proportional loadings; Equivalent ranges; Critical-Plane Approach.https://www.fracturae.com/index.php/fis/article/view/1775Multiaxial fatigueNon-proportional loadingsEquivalent rangesCritical-Plane Approach |
| spellingShingle | Hao Wu Marco Antonio Meggiolaro Jaime Tupiassú Pinho de Castro Application of the Moment Of Inertia method to the Critical-Plane Approach Fracture and Structural Integrity Multiaxial fatigue Non-proportional loadings Equivalent ranges Critical-Plane Approach |
| title | Application of the Moment Of Inertia method to the Critical-Plane Approach |
| title_full | Application of the Moment Of Inertia method to the Critical-Plane Approach |
| title_fullStr | Application of the Moment Of Inertia method to the Critical-Plane Approach |
| title_full_unstemmed | Application of the Moment Of Inertia method to the Critical-Plane Approach |
| title_short | Application of the Moment Of Inertia method to the Critical-Plane Approach |
| title_sort | application of the moment of inertia method to the critical plane approach |
| topic | Multiaxial fatigue Non-proportional loadings Equivalent ranges Critical-Plane Approach |
| url | https://www.fracturae.com/index.php/fis/article/view/1775 |
| work_keys_str_mv | AT haowu applicationofthemomentofinertiamethodtothecriticalplaneapproach AT marcoantoniomeggiolaro applicationofthemomentofinertiamethodtothecriticalplaneapproach AT jaimetupiassupinhodecastro applicationofthemomentofinertiamethodtothecriticalplaneapproach |