Accession Number : ADA019758

Title :   Mechanical Property Testing of High Temperature Materials,

Corporate Author : ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT PARIS (FRANCE)

Personal Author(s) : Davidge,R. W. ; Massman,J.

Report Date : DEC 1975

Pagination or Media Count : 35

Abstract : The Structures and Materials Panel recently initiated a new activity dealing with the field of High Temperature Materials. Several exploratory papers were heard covering various aspects of this field, to aid in determining the desired direction of the new activity. Two of these papers were considered particularly noteworthy and are reproduced in this Report. The first deals with the mechanical properties and design data of ceramic components for engineering applications. The second paper, dealing with stress and strain calculations, shows the application of the Finite Element Method to a structural analysis and lifetime prediction problem, and includes the calculation of stress and strain distribution at critical locations. Stress concentration factors in specimens of linear and nonlinear material, different types of yield criteria, use of Neuber and the Hardrath and Ohman Theories are examined and results are compared with the Finite Element Method. Plasticity and creep influences are considered.

Descriptors :   *Ceramic materials, *Heat resistant materials, Mechanical properties, Stress strain relations, Finite element analysis, Test methods, Plastic properties, Yield strength, Creep, Stresses, Strain(Mechanics), Predictions, NATO

Subject Categories : Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE