TY - JOUR
T1 - Finite element formulation for modeling particle debonding in reinforced elastomers subjected to finite deformations
AU - Matouš, Karel
AU - Geubelle, Philippe H.
N1 - Funding Information:
The authors gratefully acknowledge support from the Center for Simulation of Advanced Rockets (CSAR) at the University of Illinois, Urbana-Champaign. Research at CSAR is funded by the US Department of Energy as a part of its Advanced Simulation and Computing (ASC) program under contract number B341494.
PY - 2006/12/1
Y1 - 2006/12/1
N2 - Interfacial damage nucleation and evolution in reinforced elastomers is modeled using a three-dimensional updated Lagrangian finite element formulation based on the perturbed Petrov-Galerkin method for the treatment of nearly incompressible behavior. The progressive failure of the particle-matrix interface is modeled by a cohesive law accounting for mode mixity. The meso-scale is characterized by a unit cell, which contains particles dispersed in a homogenized blend. A new, fully implicit and efficient finite element formulation, including consistent linearization, is presented. The proposed finite element model is capable of predicting the non-homogeneous meso-fields and damage nucleation and propagation along the particle-matrix interface. Simple deformations involving an idealized solid rocket propellant are considered to demonstrate the algorithm.
AB - Interfacial damage nucleation and evolution in reinforced elastomers is modeled using a three-dimensional updated Lagrangian finite element formulation based on the perturbed Petrov-Galerkin method for the treatment of nearly incompressible behavior. The progressive failure of the particle-matrix interface is modeled by a cohesive law accounting for mode mixity. The meso-scale is characterized by a unit cell, which contains particles dispersed in a homogenized blend. A new, fully implicit and efficient finite element formulation, including consistent linearization, is presented. The proposed finite element model is capable of predicting the non-homogeneous meso-fields and damage nucleation and propagation along the particle-matrix interface. Simple deformations involving an idealized solid rocket propellant are considered to demonstrate the algorithm.
KW - Cohesive and volumetric elements
KW - Decohesion
KW - Finite deformations
KW - Particulate composites
KW - Stabilized method
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U2 - 10.1016/j.cma.2006.06.008
DO - 10.1016/j.cma.2006.06.008
M3 - Article
AN - SCOPUS:33846534741
SN - 0045-7825
VL - 196
SP - 620
EP - 633
JO - Computer Methods in Applied Mechanics and Engineering
JF - Computer Methods in Applied Mechanics and Engineering
IS - 1-3
ER -