In this chapter, a kind of new magnetorheological elastomer (MRE) is developed with the brominated isoprene isobutylene rubber matrix, a high damping property rubber. In order to investigate the performance of the new kind of MRE and find out the difference with the MRE based on a natural rubber matrix, the physical and dynamic mechanical properties of these samples are tested. In addition, the proposed magnetoviscoelasticity parametric model is introduced, and the parameters are identified for this kind of MRE, then the force-displacement curves obtained from model simulation and experimental data are compared with the numerical simulation.

Chapter Contents:

• 11.1 MR elastomers fabrication
• 11.1.1 Selection of materials
• 11.1.2 Procedure of MRE specimens' fabrication
• 11.2 Performance tests of MREs
• 11.2.1 Test setup and procedure
• 11.2.2 Results and analysis
• 11.2.2.1 Physical property test
• 11.2.2.2 Quasi-static property test
• 11.2.2.3 Dynamic mechanical property test
• 11.3 Numerical simulations
• 11.3.1 The microphysical model based on chi-squared distribution
• 11.3.2 Magnetoviscoelasticity parametric model
• 11.3.3 Parameter identification
• 11.3.4 Numerical simulation results
• 11.4 Conclusion
• Acknowledgments
• References

Inspec keywords: viscoelasticity; intelligent materials; elastomers; magnetorheology

Other keywords: force-displacement curves; magnetoviscoelasticity parametric model; magnetorheological elastomers; mathematical model; brominated isoprene isobutylene rubber matrix; model simulation; dynamic mechanical properties

Subjects: Viscoelasticity, plasticity, viscoplasticity, creep, and stress relaxation; Anelasticity, internal friction and mechanical resonances; Elasticity and anelasticity; Intelligent materials