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090 _aB-19083
245 1 0 _aMicromechanics of stress transfer through the interphase in fiber-reinforced composites
490 0 _vMechanics of Materials, 89, p.190-201, 2015
520 3 _aA micromechanical model to predict the interphasial/interfacial stress transfer in a three-phase fiber-reinforced composite is presented. The axisymmetric system consists of a fiber embedded in a compliant matrix having an interphase between them. Each constituent of the composite is regarded as a linear elastic continuum. The matrix is treated as an isotropic material while the fiber and interphase are considered as a transversely isotropic material. Traction-free boundary conditions are strictly enforced. It is assumed that the interfaces are perfect and strong. A pair of uncoupled governing partial differential equations is obtained in terms of unknown displacements. Furthermore, assuming that the Eigenvalues exist for this system of equations, Eigenfunction expansion method is employed to derive an exact solution in terms of the Bessel functions. Analytical solutions are obtained for free boundary conditions at the external surface of the matrix cylinder to model a single fiber pull-out problem, and for fixed boundary conditions to approximately model a hexagonal array of fibers in the matrix material. This formulation provides an analytical framework for the analysis of interphasial and interfacial stresses as well as displacements in the entire 3D axisymmetric system. Finite element (FE)analysis was also performed to simulate stress transfer from the fiber to the matrix through the interphase. Analytically obtained stress fields are verified with FE results. Shear and radial interphasial stresses provide insight into the design of engineered interfaces/interphases.
650 1 4 _aPOLYMER MATRIX COMPOSITES (PMCS)
650 1 4 _aMICROMECHANICS
650 1 4 _aINTERPHASE
650 1 4 _aINTERFACE
650 1 4 _aSTRESS TRANSFER
650 1 4 _aEIGENFUNCTION EXPANSION METHOD
700 1 2 _aUpadhyaya, P.
700 1 2 _aKumar, S.
856 4 0 _uhttps://drive.google.com/file/d/13zbp332cG2iQXBeUnXomeEMwP5hxV2cX/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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