Longitudinal Splitting in Unidirectional Composites, Analysis and Experiments.
Abstract
Composite materials are, in general, formed when two or more chemically distinct materials are combined so that a distinct interface will separate the components (as opposed to alloys). Each of the constituent materials has its own physical properties, but the resulting composite has properties different from each material alone. It is desirable for the composite to take advantage of selected properties from each constituent. Of the several types of composite materials, the category of particular interest is the continuous fiber-reinforced, or fibrous, composite. This type consists of one phase which is usually much stronger (fiber) than the other phase (matrix). This combination leads to anisotropic properties which provide the capability of designing for specific characteristics such as high strength in one critical direction. This is also the composite material that has been the most analyzed and reported in the literature. The text by Jones presents a macroscopic approach to predicting composite properties and behavior. A more statistical approach is presented by Zweben where the statistical scatter of fiber strength and local fiber overstress due to fiber discontinuities are considered. These analyses concentrate on initially undamaged composites. Work is also being done where some type of initial damage is present in the laminate, usually in the form of a crack through both the fiber and matrix. The goal is to determine how the composite strength and fracture behavior under loading are affected by this damage. (MM)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1985
- Accession Number
- ADA302663
Entities
People
- J. Goree
- Jeffrey M. Wolla
Organizations
- Clemson University