Determination of Reliable Fatigue Life Predictors for Magnetorheological Elastomers Under Dynamic Equi-Biaxial Loading

Abstract Fatigue life prediction is of great significance in ensuring magnetorheological elastomer (MRE) based rubber components exhibit reliability and do not compromise safety under complex loading, and this necessitates the development of plausible fatigue life predictors for MREs. In this research, silicone rubber based MREs were fabricated by incorporating soft carbonyl iron magnetic particles. Equi-biaxial fatigue behaviour of the fabricated MREs was investigated by using the bubble inflation method. The relationship between fatigue life and maximum engineering stress, maximum strain and strain energy density were studied. The results showed that maximum engineering stress and stored energy density can be used as reliable fatigue life predictors for SR based MREs when they are subjected to dynamic equi-biaxial loading. General equations based on maximum engineering stress and strain energy density were developed for fatigue life prediction of MREs.

[1]  Oscar Martínez-Romero,et al.  Enhancement of a magnetorheological PDMS elastomer with carbonyl iron particles , 2017 .

[2]  L. Mullins.  Effect of Stretching on the Properties of Rubber , 1948 .

[3]  Mattias Lokander,et al.  Improving the magnetorheological effect in isotropic magnetorheological rubber materials , 2003 .

[4]  V. Pavlínek,et al.  Synthesis of Silicone Elastomers Containing Silyl-Based Polymer-Grafted Carbonyl Iron Particles: An Efficient Way To Improve Magnetorheological, Damping, and Sensing Performances , 2017 .

[5]  Alan N. Gent,et al.  Cut growth and fatigue of rubbers. I. The relationship between cut growth and fatigue , 1965 .

[6]  F. Abraham,et al.  The effect of minimum stress and stress amplitude on the fatigue life of non strain crystallising elastomers , 2005 .

[7]  M. Klüppel,et al.  Magneto-rheological response of elastomer composites with hybrid-magnetic fillers , 2015 .

[8]  G. Cailletaud,et al.  Haigh diagram for fatigue crack initiation prediction of natural rubber components , 1999 .

[9]  G. Farrell,et al.  The influence of particle content on the equi-biaxial fatigue behaviour of magnetorheological elastomers , 2015 .

[10]  K. Bertoldi,et al.  Stability of anisotropic magnetorheological elastomers in finite deformations: A micromechanical approach , 2013 .

[11]  Gursel Alici,et al.  A novel magnetorheological elastomer isolator with negative changing stiffness for vibration reduction , 2014 .

[12]  Xinglong Gong,et al.  Fabrication and characterization of isotropic magnetorheological elastomers , 2005 .

[13]  F. Zaïri,et al.  Multiaxial fatigue life prediction of rubber-like materials using the continuum damage mechanics approach , 2010 .

[14]  A. Boczkowska,et al.  Tuning Active Magnetorheological Elastomers for Damping Applications , 2010 .

[15]  S. M. Cadwell,et al.  THE DYNAMIC FATIGUE LIFE OF RUBBER , 1939 .

[16]  G. Heinrich,et al.  The level of cross-linking and the structure of anisotropic magnetorheological elastomers , 2012 .

[17]  Huaxia Deng,et al.  Performance evaluation and comparison of magnetorheological elastomer absorbers working in shear and squeeze modes , 2015 .

[18]  A. Betts,et al.  Fatigue Life Prediction of Magnetorheological Elastomers Subjected to Dynamic Equi-Biaxial Cyclic Loading , 2014 .

[19]  Holger Böse,et al.  Soft magnetorheological elastomers as new actuators for valves , 2012 .

[20]  Alan N. Gent,et al.  Cut growth and fatigue of rubbers. I. The relationship between cut growth and fatigue , 1964 .

[21]  Philip G. Harrison,et al.  Large-strain behaviour of Magneto-Rheological Elastomers tested under uniaxial compression and tension, and pure shear deformations , 2015 .

[22]  S. Jerrams,et al.  The Significance of Equi-Biaxial Bubble Inflation in Determining Elastomeric Fatigue Properties , 2012 .

[23]  S. Jerrams,et al.  Equi-biaxial fatigue testing of EPM utilising bubble inflation , 2016 .

[24]  Hee Seung Ro,et al.  Modeling and interpretation of fatigue failure initiation in rubber related to pneumatic tires , 1989 .