Accession Number : ADA332954

Title :   Environmental Interactions and Fracture in Polymer-Matrix Composites.

Descriptive Note : Final rept. 1 Oct 91-30 Sep 97,

Corporate Author : MANCHESTER UNIV (UNITED KINGDOM)

Personal Author(s) : Newman, Roger C. ; Lyon, Stuart B.

PDF Url : ADA332954

Report Date : DEC 1997

Pagination or Media Count : 16

Abstract : This project was concerned with the link between transport and fracture in composite materials with emphasis on degradation of properties on aqueous exposure. The dependence of transport and fracture on volume fraction of a particulate filler was considered in terms of the percolation properties of the connected and unconnected particles. This report describes: validation of the percolation approach; mechanical properties ad effect of water absorption; electrical and gravimetric measurements; and ternary composites with glass and rubber.

Descriptors :   *POLYMERS, *COMPOSITE MATERIALS, *MATRIX MATERIALS, *FRACTURE(MECHANICS), MECHANICAL PROPERTIES, ENVIRONMENTS, DEGRADATION, VALIDATION, EXPOSURE(GENERAL), INTERACTIONS, WATER, RUBBER, GRAVIMETRY, PARTICULATES, ABSORPTION, TERNARY COMPOUNDS, ELECTRICAL MEASUREMENT, FILLERS, PERCOLATION.

Subject Categories : Polymer Chemistry
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE