A continuum theory for fiber-reinforced elastic-viscoplastic composites

Jacob Aboudi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A higher order continuum theory with microstructure is derived for the modeling of the 3-dimensional motion of fiber-reinforced composites in which both the matrix and fibers constituents are assumed to be elastic-viscoplastic work-hardening materials. The fibers are unidirectional with rectangular cross section and are imbedded in the matrix in the form of a doubly periodic array. The derivation of the theory is systematic and can be applied to various types of non-elastic composites to the desired degree of expansion. An appropriate reduction of the theory gives the average behavior of the viscoplastic composite in the form of effective rate-dependent stress-strain curves. In the special case of perfectly elastic constituents the reduction gives the approximate effective moduli of the composite.

Original languageEnglish
Pages (from-to)605-621
Number of pages17
JournalInternational Journal of Engineering Science
Issue number5
StatePublished - 1982


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