Fatigue life prediction of magnetorheological elastomers subjected to dynamic equi-biaxial cyclic loading

Yanfen Zhou; Stephen Jerrams; Anthony Betts; Lin Chen

doi:10.1016/j.matchemphys.2014.03.059

Fatigue life prediction of magnetorheological elastomers subjected to dynamic equi-biaxial cyclic loading

Yanfen Zhou, Stephen Jerrams, Anthony Betts, Lin Chen

Faculty of Sciences and Health

Research output: Contribution to journal › Article › peer-review

Abstract

Prediction of fatigue life is of great significance in ensuring that dynamically loaded rubber components exhibit safety and reliability in service. In this text, the dynamic equi-biaxial fatigue behaviour of magnetorheological elastomer (MREs) using a bubble inflation method is described. Wöhler (S-N) curves for both isotropic and anisotropic MREs were produced by subjecting the compounds to cycling over a range of stress amplitudes (σ_a) between 0.75 MPa and 1.4 MPa. Changes in physical properties, including variation in stress-strain relations and complex modulus (E*) during the fatigue process were analysed. It was found that the complex modulus of MRE samples decreased throughout the entire fatigue test and failure took place at a limiting value of approximately 1.228MPa ± 4.38% for isotropic MREs and 1.295 ± 10.33% for anisotropic MREs. It was also determined that a dynamic stored energy criterion can be used as a plausible predictor in determining the fatigue life of MREs.

Original language	English
Pages (from-to)	487-492
Number of pages	6
Journal	Materials Chemistry and Physics
Volume	146
Issue number	3
DOIs	https://doi.org/10.1016/j.matchemphys.2014.03.059
Publication status	Published - 14 Aug 2014

Keywords

Fatigue
Hysteresis
Magnetic materials
Mechanical properties

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@article{8345c6e1b39d4daa86886dcee4036648,

title = "Fatigue life prediction of magnetorheological elastomers subjected to dynamic equi-biaxial cyclic loading",

abstract = "Prediction of fatigue life is of great significance in ensuring that dynamically loaded rubber components exhibit safety and reliability in service. In this text, the dynamic equi-biaxial fatigue behaviour of magnetorheological elastomer (MREs) using a bubble inflation method is described. W{\"o}hler (S-N) curves for both isotropic and anisotropic MREs were produced by subjecting the compounds to cycling over a range of stress amplitudes (σa) between 0.75 MPa and 1.4 MPa. Changes in physical properties, including variation in stress-strain relations and complex modulus (E*) during the fatigue process were analysed. It was found that the complex modulus of MRE samples decreased throughout the entire fatigue test and failure took place at a limiting value of approximately 1.228MPa ± 4.38\% for isotropic MREs and 1.295 ± 10.33\% for anisotropic MREs. It was also determined that a dynamic stored energy criterion can be used as a plausible predictor in determining the fatigue life of MREs.",

keywords = "Fatigue, Hysteresis, Magnetic materials, Mechanical properties",

author = "Yanfen Zhou and Stephen Jerrams and Anthony Betts and Lin Chen",

note = "Funding Information: This work was made possible by funding from the Irish Research Council, Ireland (This funding was initially provided under the auspices of the Irish Research Council for Science, Engineering and Technology, IRCSET).",

year = "2014",

month = aug,

day = "14",

doi = "10.1016/j.matchemphys.2014.03.059",

language = "English",

volume = "146",

pages = "487--492",

journal = "Materials Chemistry and Physics",

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T1 - Fatigue life prediction of magnetorheological elastomers subjected to dynamic equi-biaxial cyclic loading

AU - Zhou, Yanfen

AU - Jerrams, Stephen

AU - Betts, Anthony

AU - Chen, Lin

N1 - Funding Information: This work was made possible by funding from the Irish Research Council, Ireland (This funding was initially provided under the auspices of the Irish Research Council for Science, Engineering and Technology, IRCSET).

PY - 2014/8/14

Y1 - 2014/8/14

N2 - Prediction of fatigue life is of great significance in ensuring that dynamically loaded rubber components exhibit safety and reliability in service. In this text, the dynamic equi-biaxial fatigue behaviour of magnetorheological elastomer (MREs) using a bubble inflation method is described. Wöhler (S-N) curves for both isotropic and anisotropic MREs were produced by subjecting the compounds to cycling over a range of stress amplitudes (σa) between 0.75 MPa and 1.4 MPa. Changes in physical properties, including variation in stress-strain relations and complex modulus (E*) during the fatigue process were analysed. It was found that the complex modulus of MRE samples decreased throughout the entire fatigue test and failure took place at a limiting value of approximately 1.228MPa ± 4.38% for isotropic MREs and 1.295 ± 10.33% for anisotropic MREs. It was also determined that a dynamic stored energy criterion can be used as a plausible predictor in determining the fatigue life of MREs.

AB - Prediction of fatigue life is of great significance in ensuring that dynamically loaded rubber components exhibit safety and reliability in service. In this text, the dynamic equi-biaxial fatigue behaviour of magnetorheological elastomer (MREs) using a bubble inflation method is described. Wöhler (S-N) curves for both isotropic and anisotropic MREs were produced by subjecting the compounds to cycling over a range of stress amplitudes (σa) between 0.75 MPa and 1.4 MPa. Changes in physical properties, including variation in stress-strain relations and complex modulus (E*) during the fatigue process were analysed. It was found that the complex modulus of MRE samples decreased throughout the entire fatigue test and failure took place at a limiting value of approximately 1.228MPa ± 4.38% for isotropic MREs and 1.295 ± 10.33% for anisotropic MREs. It was also determined that a dynamic stored energy criterion can be used as a plausible predictor in determining the fatigue life of MREs.

KW - Fatigue

KW - Hysteresis

KW - Magnetic materials

KW - Mechanical properties

UR - https://www.scopus.com/pages/publications/84899978649

U2 - 10.1016/j.matchemphys.2014.03.059

DO - 10.1016/j.matchemphys.2014.03.059

M3 - Article

AN - SCOPUS:84899978649

SN - 0254-0584

VL - 146

SP - 487

EP - 492

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 3

ER -

Fatigue life prediction of magnetorheological elastomers subjected to dynamic equi-biaxial cyclic loading

Abstract

Keywords

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