Mori–Tanaka Formalism-Based Method Used to Estimate the Viscoelastic Parameters of Laminated Composites

Polymers

Mostafa Katouzian¹  Sorin Vlase² 

[1] Department Maschinenwesen, Technical University of Munich, 85748 München, Germany;Department of Mechanical Engineering, Transilvania University of Brașov, 500036 Brasov, Romania;

关键词: fibrous composite;    homogenization method;    Mori–Tanaka theory;    Schapery’s equation;    constitutive law;   

DOI  :  10.3390/polym12112481

来源: DOAJ

【 摘 要 】

The paper establishes the mechanical properties of a viscoelastic composite material reinforced with fibers, where the fiber is transverse isotropic and the matrix is isotropic (a common case met in engineering practice). A computation method using the Mori–Tanaka mean field method has been developed in order to apply on viscoelastic materials. Using this procedure, the time-dependent response of a viscoelastic composite material can be determined. Schapery’s nonlinear constitutive equation is also used in the compliance matrix determination of the composite material under investigation. Nonlinearity factors were determined by creep tests at different values of stresses and temperatures and for different materials, based on the least squares method. The results obtained experimentally and their comparison with the theoretically obtained values show a good agreement between experiment and calculation.

【 授权许可】

Unknown