TY - JOUR
T1 - On small deformation interfacial debonding in composite materials containing multi-coated particles
AU - Hashemi, Roohollah
AU - Spring, Daniel W.
AU - Paulino, Glaucio H.
N1 - Funding Information:
We acknowledge support from the National Science Foundation, under grants #1031218, #1321661, and #1437535. Daniel W Spring gratefully appreciates the support of the Natural Sciences and Engineering Research Council of Canada. We also acknowledge support from the Donald and Elizabeth Willett endowment at the University of Illinois at Urbana-Champaign (UIUC). The opinions expressed are solely those of the authors and do not necessarily reflect the views of the sponsors or sponsoring agencies.
Publisher Copyright:
© The Author(s) 2014 Reprints and permissions.
PY - 2015/11/1
Y1 - 2015/11/1
N2 - This paper presents an integrated theoretical and computational investigation into the macroscopic behavior of composite materials containing multi-phase reinforcing particles with simultaneous nonlinear debonding along the microconstituent interfaces. The interfacial debonding is characterized by the nonlinear Park-Paulino-Roesler potential-based cohesive zone model. The extended Mori-Tanaka method is employed as the basis for the theoretical model, which enables micromechanical formulations for composite materials with high particle volume fractions. The computational analysis is performed using a three-dimensional finite element-based cohesive zone model with intrinsic cohesive elements. To place the generality and robustness of the proposed technique in perspective, we consider several examples of composite materials with single or double separation along the interfaces of coated particles. The effects of many microstructural parameters, such as the geometry of the microstructure, the location of debonding, the material properties of the coating layer (i.e. homogenous and functionally graded coatings), and the fracture parameters, are comprehensively investigated by both theoretical and numerical approaches. We verify that both theoretical and numerical results agree well with one another in estimating the macroscopic constitutive relationship of corresponding composite materials. The strong dependence of the overall response of composite materials on their microstructure is well recognized for all hardening, snap-back, and softening stages.
AB - This paper presents an integrated theoretical and computational investigation into the macroscopic behavior of composite materials containing multi-phase reinforcing particles with simultaneous nonlinear debonding along the microconstituent interfaces. The interfacial debonding is characterized by the nonlinear Park-Paulino-Roesler potential-based cohesive zone model. The extended Mori-Tanaka method is employed as the basis for the theoretical model, which enables micromechanical formulations for composite materials with high particle volume fractions. The computational analysis is performed using a three-dimensional finite element-based cohesive zone model with intrinsic cohesive elements. To place the generality and robustness of the proposed technique in perspective, we consider several examples of composite materials with single or double separation along the interfaces of coated particles. The effects of many microstructural parameters, such as the geometry of the microstructure, the location of debonding, the material properties of the coating layer (i.e. homogenous and functionally graded coatings), and the fracture parameters, are comprehensively investigated by both theoretical and numerical approaches. We verify that both theoretical and numerical results agree well with one another in estimating the macroscopic constitutive relationship of corresponding composite materials. The strong dependence of the overall response of composite materials on their microstructure is well recognized for all hardening, snap-back, and softening stages.
KW - functionally graded coating
KW - hollow particles
KW - homogeneous coating
KW - Multi-phase particles
KW - nonlinear separation
KW - Park-Paulino-Roesler cohesive zone model
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U2 - 10.1177/0021998314565431
DO - 10.1177/0021998314565431
M3 - Article
AN - SCOPUS:84944128712
SN - 0021-9983
VL - 49
SP - 3439
EP - 3455
JO - Journal of Composite Materials
JF - Journal of Composite Materials
IS - 27
ER -