Critical plane approach to multiaxial variable amplitude fatigue loading
A new critical plane approach based on the modified Manson-Coffin curve method (MMCCM) is presented in this paper for predicting fatigue lifetime under variable amplitude (VA) multiaxial fatigue loading. The critical plane is assumed to coincide with that material plane experiencing the maximum va...
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Gruppo Italiano Frattura
2015-07-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero33/numero_33_art_38.pdf |
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| _version_ | 1832544249264996352 |
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| author | Yingyu Wang Luca Susmel |
| author_facet | Yingyu Wang Luca Susmel |
| author_sort | Yingyu Wang |
| collection | DOAJ |
| description | A new critical plane approach based on the modified Manson-Coffin curve method (MMCCM) is
presented in this paper for predicting fatigue lifetime under variable amplitude (VA) multiaxial fatigue loading.
The critical plane is assumed to coincide with that material plane experiencing the maximum variance of the
resolved shear strain. Fatigue damage is hypothesized to be a function of both the amplitude of the resolved
shear strain and the so-called critical plane stress ratio. The latter quantity depends on the mean value and the
variance of the stress perpendicular to the critical plane as well as on the variance of the shear stress resolved
along the direction experiencing the maximum variance of the resolved shear strain. Load cycles are counted
from the resolved shear strain time history by using the classic rain flow counting method. Palmgren-Miner’s
linear damage rule is applied to estimate cumulative fatigue damage. The accuracy and reliability of the proposed
approach is checked by using several experimental data taken from the literature. The estimated fatigue lives
based on the new approach are seen to be in sound agreement with the experimental results. |
| format | Article |
| id | doaj-art-1e2c4f93611c4cddbed2ef7956936367 |
| institution | Kabale University |
| issn | 1971-8993 1971-8993 |
| language | English |
| publishDate | 2015-07-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-1e2c4f93611c4cddbed2ef79569363672025-02-03T10:43:25ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932015-07-0193334535610.3221/IGF-ESIS.33.38Critical plane approach to multiaxial variable amplitude fatigue loadingYingyu Wang0Luca Susmel1Nanjing University,ChinaUniversity of Sheffield,UKA new critical plane approach based on the modified Manson-Coffin curve method (MMCCM) is presented in this paper for predicting fatigue lifetime under variable amplitude (VA) multiaxial fatigue loading. The critical plane is assumed to coincide with that material plane experiencing the maximum variance of the resolved shear strain. Fatigue damage is hypothesized to be a function of both the amplitude of the resolved shear strain and the so-called critical plane stress ratio. The latter quantity depends on the mean value and the variance of the stress perpendicular to the critical plane as well as on the variance of the shear stress resolved along the direction experiencing the maximum variance of the resolved shear strain. Load cycles are counted from the resolved shear strain time history by using the classic rain flow counting method. Palmgren-Miner’s linear damage rule is applied to estimate cumulative fatigue damage. The accuracy and reliability of the proposed approach is checked by using several experimental data taken from the literature. The estimated fatigue lives based on the new approach are seen to be in sound agreement with the experimental results.http://www.gruppofrattura.it/pdf/rivista/numero33/numero_33_art_38.pdfMultiaxial fatigueVariable amplitude loadingCritical planeFatigue life prediction |
| spellingShingle | Yingyu Wang Luca Susmel Critical plane approach to multiaxial variable amplitude fatigue loading Fracture and Structural Integrity Multiaxial fatigue Variable amplitude loading Critical plane Fatigue life prediction |
| title | Critical plane approach to multiaxial variable amplitude fatigue loading |
| title_full | Critical plane approach to multiaxial variable amplitude fatigue loading |
| title_fullStr | Critical plane approach to multiaxial variable amplitude fatigue loading |
| title_full_unstemmed | Critical plane approach to multiaxial variable amplitude fatigue loading |
| title_short | Critical plane approach to multiaxial variable amplitude fatigue loading |
| title_sort | critical plane approach to multiaxial variable amplitude fatigue loading |
| topic | Multiaxial fatigue Variable amplitude loading Critical plane Fatigue life prediction |
| url | http://www.gruppofrattura.it/pdf/rivista/numero33/numero_33_art_38.pdf |
| work_keys_str_mv | AT yingyuwang criticalplaneapproachtomultiaxialvariableamplitudefatigueloading AT lucasusmel criticalplaneapproachtomultiaxialvariableamplitudefatigueloading |