The evolution of microdamage (interfacial dewetting) in highly filled elastomers under consideration of high deformation gradients is examined. The interface between hard (rigid, two-dimensional) inclusions embedded in an elastomer characterized by a three-term Ogden (rate insensitive) model, and the elastomer matrix is represented by a cohesive-zone type interfacial model to follow the whole process of interfacial dewetting and its effect on the global (multiphase) material response in a plane strain setting. The analysis is carried out through a mixed finite element formulation for hyperelasticity, incorporating interface elements. We consider the effects of particle geometry and loading conditions on the process of interfacial failure. The results indicate that the distributed failure process is highly unstable and depends heavily on the size, shape, orientation and interactions of inclusions as well as the global loading conditions. The overall material behavior of the model agrees qualitatively with experimental observation.
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July 1997
Technical Papers
Analysis of Interfacial Failure in Particle-Filled Elastomers
X. Allan Zhong,
X. Allan Zhong
Graduate Aeronautical Laboratories, California Institute of Technology, Pasadena, CA 91125
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Wolfgang G. Knauss
Wolfgang G. Knauss
Graduate Aeronautical Laboratories, California Institute of Technology, Pasadena, CA 91125
Search for other works by this author on:
X. Allan Zhong
Graduate Aeronautical Laboratories, California Institute of Technology, Pasadena, CA 91125
Wolfgang G. Knauss
Graduate Aeronautical Laboratories, California Institute of Technology, Pasadena, CA 91125
J. Eng. Mater. Technol. Jul 1997, 119(3): 198-204 (7 pages)
Published Online: July 1, 1997
Article history
Received:
January 2, 1997
Revised:
April 14, 1997
Online:
November 27, 2007
Citation
Zhong, X. A., and Knauss, W. G. (July 1, 1997). "Analysis of Interfacial Failure in Particle-Filled Elastomers." ASME. J. Eng. Mater. Technol. July 1997; 119(3): 198–204. https://doi.org/10.1115/1.2812243
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