کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
821883 | 1469556 | 2009 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Micromechanical analysis of stress relaxation response of fiber-reinforced polymers Micromechanical analysis of stress relaxation response of fiber-reinforced polymers](/preview/png/821883.png)
The paper describes a micromechanical method to determine the stress relaxation response of polymer composites consisting of linearly viscoelastic matrices and transversely isotropic elastic fibers. A representative unit cell is subjected to some prescribed axial and shear loadings to study and quantify the time-dependent behavior of composite materials. Closed-form analytical expressions are derived describing the anisotropic viscoelastic response of composite materials as functions of matrix and fiber properties. The present analytical expressions are employed to determine the stress relaxation behavior of a graphite/epoxy composite and the results are compared with the finite element analysis of the micromechanical model. Very good correlation between analytical expressions and numerical results is illustrated for the linearly anisotropic viscoelastic response of composite materials.
Journal: Composites Science and Technology - Volume 69, Issues 7–8, June 2009, Pages 1286–1292