Plasticity Theory of Fibrous Composites - Part I.
Abstract
Plastic deformation was studied in unidirectional fibrous composites made of isotropic, linearly elastic fibers, and an elastic-plastic, nonhardening matrix of the Mises type. Special attention was given to the effects of axisymmetric stress states. The composite exper-ienced kinematic hardening when loaded by axisymmetric composite stresses. A simple Hardening Rule I was derived and an associated flow rule was formulated. The results obtained from these rules were verified by comparison with exact finite element plasticity solutions for a cylindrical composite model of the B-A SYSTEM. Significant plastic macro-dilitation was found for certain loading directions in the axisymmetric composite stress plane. (Author, modified-PL)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1973
- Accession Number
- AD0779480
Entities
People
- George J. Dvorak
- M. S. Madhava Rao
Organizations
- Duke University