The effect of interphase on the elastic behavior of a glass/epoxy bundle

Closed-Form Thermoelastic Moduli of a Periodic Three-Phase Fiber-Reinforced Composite

“…The coefficients b k ; b Àk , and c k are expressed in terms of a k , substituting Equations (15) and (16) into the interface conditions (14). Also, an infinite system of equations is obtained for a k :…”

“…Chu and Rokhlin [14] reported a method for the inverse determination of effective elastic moduli of mesophases using a multiphase generalized self-consistent model. The effect of an interphase on the behavior of a glass=epoxy composite based on the Theocaris model interphase and taking a hexagonal based cell for the three-phase composite were discussed in Chouchaoui and Benzeggagh [15]. By using the homogenization schemes for periodic media, the effective elastic properties are determined taking into account continuous radial variation of properties of the interphase.…”

Glass transition and segmental dynamics in poly(dimethylsiloxane)/silica nanocomposites studied by various techniques

“…Results obtained by various techniques indicate the presence of an interfacial polymer layer around the filler, with structure/morphology and chain dynamics modified with respect to the bulk polymer matrix [5]. The existence of such an interfacial layer has been postulated for conventional composites long ago and various experiments provided support for that [6]. Questions related to the existence of such an interfacial layer, its thickness and the variation of polymer properties within the layer with respect to bulk properties become crucial for nanocomposites, as the interfacial layer can represent a significant volume fraction of the polymer in nanocomposites.…”

Nanoindentation of polymeric thin films with an interfacial force microscope

“…Micro-mechanical techniques have provided additional evidence of an interphase and have begun to elucidate the impact the interphase and interface adhesion have on the composites' overall mechanical properties (Williams et al, 1990;Meurs et al, 1996;Winter and Houston, 1998a, b). Continuum mechanics analyses have clearly shown that the interphase plays an important role in the transverse properties of polymer composites, and to a lesser degree, in the unidirectional properties of polymer composites and the macroscopic elastic constants (Chouchaoui and Benzeggagh, 1997;Skala et al, 1994).…”