Transversely isotropic elastic moduli of a composite with partial particle debonding

Y. H. Zhao, G. J. Weng

Research output: Contribution to journalConference articlepeer-review


A theoretical principle is developed to determine the transversely isotropic effective moduli of a composite containing homogeneously dispersed, elastic spherical inclusions which, under the action of external tension, experience debonding on the top and bottom of the interface. The theory is developed on the assumption that the inclusions can no longer carry stress in the loading direction after debonding, but are still capable of doing so in the transverse direction. The effective moduli are then calculated as a function of volume concentrations of still perfectly bonded particles and already debonded particles, in addition to the properties of the inclusions and matrix. Comparison is provided between this newly developed theory and those of Mochida, Taya and Obata (1991) for partial debonding of rigid inclusions, and of Tohgo and Weng (1994) for complete debonding of elastic inclusions. It is found that the longitudinal Young's modulus with partially debonded elastic particles always lies between these two.

Original languageEnglish (US)
Pages (from-to)1-11
Number of pages11
JournalAmerican Society of Mechanical Engineers, Applied Mechanics Division, AMD
StatePublished - 1995
EventProceedings of the 1995 Joint ASME Applied Mechanics and Materials Summer Meeting - Los Angeles, CA, USA
Duration: Jun 28 1995Jun 30 1995

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering


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