Accession Number : ADA302675

Title :   New Theoretical Approach to the Strength of Fibre Composite Hybrid Materials,

Corporate Author : PLYMOUTH POLYTECHNIC (UNITED KINGDOM)

Personal Author(s) : Short, D. ; Summerscales, J.

PDF Url : ADA302675

Report Date : NOV 1982

Pagination or Media Count : 25

Abstract : A fiber composite hybrid material generally consists ot two or more fiber types contained in a single matrix. There are several equations already in existence which allow the calculation of the strength of the resulting composite. However, the most commonly used equations assume either a sharp transition in the failure strain of the composite when the volume ratio of the two fiber species crosses a critical value of volume ratio, or that there are distinct failure strains for each of the two fiber species. In the new theory it is assumed that the failure strain of the low elongation component can be linearly increased to the failure of the high elongation component in a manner predicted by the rule-of-mixtures. The equation predicts an upper limit to strength which may show the 'hybrid effect', a synergistic strengthening of the composite properties, subject to the correct choice of constituents for the hybrid. (MM)

Descriptors :   *FIBER REINFORCED COMPOSITES, *STRENGTH(MECHANICS), FOREIGN TECHNOLOGY, CARBON FIBERS, MATRIX MATERIALS, STRAIN(MECHANICS), GLASS, HYBRID SYSTEMS, FAILURE(MECHANICS), ELONGATION, GREAT BRITAIN.

Subject Categories : Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE