On the viscoelastic properties of prestrained rubber
Copyright policy )On the viscoelastic properties of prestrained rubber
The material behaviour of rubber is investigated for a special type of deformations namely small amplitude vibrations superposed on finite static prestrain. By restricting the magnitude of the prestrain it is possible to derive a simplified constitutive equation which can be used to solve simple boundary value problems. On this theoretical background the stiffness of two types of sample geometries were computed and measured in a vibration experiment. The resulting expression for the dynamic sample stiffness contains besides the classical relaxation modulus three other complex, frequency dependent moduli and the static prestrain.
- École Polytechnique Fédérale de Lausanne EPFL Switzerland
good agreement, Nonlinear constitutive equations for materials with memory, superposed on large static deformation, experiment, viscoelastic properties, Materials of strain-rate type and history type, other materials with memory (including elastic materials with viscous damping, various viscoelastic materials), prestrained, material behaviour of rubber, state of zero stress and strain, stiffness, Theory of constitutive functions in solid mechanics, two types of sample geometries, simple boundary value problems, small amplitude vibration, Composite and mixture properties, subject to small displacement
good agreement, Nonlinear constitutive equations for materials with memory, superposed on large static deformation, experiment, viscoelastic properties, Materials of strain-rate type and history type, other materials with memory (including elastic materials with viscous damping, various viscoelastic materials), prestrained, material behaviour of rubber, state of zero stress and strain, stiffness, Theory of constitutive functions in solid mechanics, two types of sample geometries, simple boundary value problems, small amplitude vibration, Composite and mixture properties, subject to small displacement
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