Evaluation of influence of interphase material parameters on effective material properties of three phase composites

Three-phase model and digital image correlation to assess the interphase effect on the elasticity of carbohdyrate polymer-based composites reinforced with glass–silica beads

“…Non-linear proportionality between traction and displacement is exploited in the progressive decohesion of the interphase and crack extension (Chaboche et al, 1997;Segurado & LLorca, 2004;Tvergaard, 2009). The way the interphase influences the effective properties depends on the contrast between the properties of the interphase and the remaining phases (Esmaeili & Tomita, 2006;Liu et al, 2008;Taliercio, 2007;Wei & Huang, 2004), on the interphase thickness-filler size ratio (Kari et al, 2008;Sevostianov & Kachanov, 2007) and finally the ability to form a connected interphase network ). In such a way, a strong interphase effect is expected, for example, for those composites reinforced by nano-sized particles, as a consequence of the large volume content of interfaces (Patel, Bhattacharya, & Basu, 2008).…”

“…The present finite element model has the advantage to handle all these features numerically since the above-mentioned models fail in describing a varied "environment" around the fillers especially when particle interspacing becomes small. Some recent contributions tend towards such description using finite element modelling (Kari et al, 2008). The interphase structure has been accounted either by considering uniform properties (Hashin & Monteiro, 2002) or varied properties (Li, 2000;Lutz et al, 1997;Lutz & Zimmerman, 2005;Ru, 1999;Wang & Zhong, 2003).…”

Effect of fibre shape and interphase on the anisotropic viscoelastic response of fibre composites

“…Further analysis for the case of circular cylindrical fibres [4] revealed that in order to obtain predictions of the components of the viscoelastic stiffness tensor insensitive to SVE size and associated to an intrinsic of scatter less than 5%, / 24 LR must be enforced. In other words, the minimum size of a representative volume element (RVE) [19] is equal to 24 times the fibre radius for the case of circular fibres. We conducted preliminary simulations exploring, for fibres of non-circular shape, the dependence of the predictions on RVE size and we found that even for these fibres, / 24 LR is a suitable choice.…”

“…This region has been reported to have thickness between 30 nm and 1 m for the case of GFRPs [10,11] and can be tailored by acting upon the thickness of fibre coatings [12]. Modelling such interphases can be necessary to improve the accuracy of simulations and several authors have studied the effects of the interphase on the stiffness and damping of FRPs with circular fibres by analysing the response of periodic unit cells based on square or hexagonal arrangement of fibres ( [13][14][15][16][17][18]) and, for case of elastic properties, analysing the response of random RVEs [19][20][21].…”

Aspects of Computational Homogenization at Finite Deformations: A Unifying Review From Reuss' to Voigt's Bound

“…Also, the importance of the interphase zone in modeling composite materials has been discussed in Refs. [164][165][166][167][168][169][170][171][172][173][174][175][176], among many. Detailed reviews and comparisons of analytical models of micromechanics can be found in Ref.…”