The Study On The Mechanical Properties Foam Rubber Of Micromechanical Model

The preparation methods and application prospects for foam silicone rubber werebriefly generalized in this paper. The structure morphology of foam silicone rubber wasintroduced. The several structural parameters of foam silicone rubber were given, andthe effect of this parameters on the mechanical properties of foams was analyzed. Inaddition, the basic mechanical properties of foam silicone rubber were brieflyintroduced.The new quasi-static constitutive model of foam silicone rubber was establishedusing the theory of continuum mechanics on the basis of the constitutive relation of theincompressible rubber. The paper analyses the mechanical behavior of matrix materialand cell structure of open-cell foam rubber by Gibson-Ashby model and the strainenergy function of incompressible rubber-like material. The constitutive relation ofopen-cell foam rubber is established by the overlay analysis of the two impact factors.The studies on the nonlinear mechanical behavior of foam silicone rubber was given byusing the principle of minimum potential energy and the structural symmetry conditionsof tetrakaidecahedron model.Theoretical derivation on viscoelastic mechanical behaviors of foam siliconerubber was conducted with the help of three elements solid model and linearviscoelastic mechanics theory. The analysis on viscoelastic mechanical properties offoam silicone rubber was implemented under different loading conditions of appliedload. The nonlinear correction on viscoelastic response of foam silicone rubber wasgiven. The nonlinear viscoelastic mechanical properties of foam silicone rubber werededuced by means of using two different theoretical derivation methods.