Development Of Ndt Methods For Advanced Metallic Composite Materials

Development of NDT Methods for Advanced Metallic Composite Materials

This report is the technical summary of a 15-month study into the application of nondestructive test (NDT) methods to determine the mechanical properties of metal matrix composites. A number of NDT methods aimed at the direct evaluation of mechanical properties were developed. These methods were vibration tests, ultrasonic velocity and attenuation measurement, and acoustic emission. All methods gave very promising results and correlations and are potentially capable of development into industrial test systems. An analytic study of defect characterization in these materials indicates an inherently wide property scatter and indicates the theoretical effects of filament misalinement and filament breaks and of delamination. An industry survey was conducted and the general conclusions indicate a growing interest in complex shapes, which present no basic problems but require adaptation of instrumentation. (Author, modified-PL).

Fiber-reinforced Metal-matrix Composites--1969-1970

Bibliography on Fibers and Composite Materials--1969-1972

The bibliography contains over 3000 references, including translated items from Japan, West Germany, U.S.S.R., and other countries as well as references of original English language publications of the United States and United Kingdom. The references are categorized by specific fiber and matrix materials. In addition, many references are grouped in the general categories of compatibility studies, theory and design, testing and evaluation, application, and fabrication. A group of references to general review articles is included. The references represent the holdings of the former Defense Ceramic Information Center (DCIC) plus those of the Fibers and Composites Center (FCIC) at Battelle's Columbus Laboratories and MCIC. (Author).