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A Three-Dimensional Hyper-Viscoelasticity Constitutive Model for the Dynamic Response of Rubber

Liu, Min
http://rave.ohiolink.edu/etdc/view?acc_num=akron1185546966

Abstract Details

2007, Master of Science, University of Akron, Mechanical Engineering.
The objective of this research is to develop a constitutive model to describe the dynamic response of a filled rubber compound. A series of cyclic tension tests were done at room temperature on a rubber compound under mean strains ranging from 0.2 to 0.5, strain amplitudes ranging from 0.05 to 0.2, and strain rates ranging from 0.1 to 10s-1. All these cyclic strain-controlled experiments showed material rate-dependence and hysteresis. The test results motivated the development of a phenomenological-based, three-dimensional constitutive model. A Zener model, i.e., a spring in parallel with a Maxwell element, was assumed. The total stress was decomposed into a rate-independent equilibrium stress and a rate-dependent overstress. The equilibrium response was obtained from a multi-step relaxation test. Material constants for the Maxwell element in the constitutive model were calculated from the cyclic tension test results. Cyclic tension tests were also performed on a sheet with central hole to check the accuracy of the constitutive model. The constitutive model was implemented into ABAQUS Explicit by user-defined material subroutine, VUMAT. The FEA simulation of the rubber sheet with a central hole demonstrated relatively good agreement with the experimental data. Both the peak load and hysteresis were predicted to within 28% of the test data.
Michelle Hoo Fatt (Advisor)
strains; strain rates; hysteresis; intermediate spring

Recommended Citations

Citations

  • Liu, M. (2007). A Three-Dimensional Hyper-Viscoelasticity Constitutive Model for the Dynamic Response of Rubber [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1185546966

    APA Style (7th edition)

  • Liu, Min. A Three-Dimensional Hyper-Viscoelasticity Constitutive Model for the Dynamic Response of Rubber. 2007. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1185546966.

    MLA Style (8th edition)

  • Liu, Min. "A Three-Dimensional Hyper-Viscoelasticity Constitutive Model for the Dynamic Response of Rubber." Master's thesis, University of Akron, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=akron1185546966

    Chicago Manual of Style (17th edition)

akron1185546966
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© 2007, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.