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Title: Application of neutron diffraction technology to the determination of residual strain in engineering composites

Knowledge of fabrication induced residual stresses in the fiber and matrix of advanced engineering composites is important as these stresses can greatly influence the mechanical properties of these composites. In this paper, the application of neutron diffraction technology to the determination of thermal residual strains in the constituents of composites (from which stresses can be calculated) is discussed. Experimental determination of temperature dependent strain in the fiber and matrix of three composites compare favorably with the results of analytical and finite element methods used to predict strain. These composites (two ceramic matrix and one metal matrix) are materials of interest to a variety of industries. In this paper, the benefit of applying a National Laboratory developed technology to a problem of interest to industry, is shown.
Authors:
Publication Date:
OSTI Identifier:
10111702
Report Number(s):
ANL/CP--77428; CONF-921110--37
ON: DE93004249
DOE Contract Number:
W-31109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: Winter annual meeting of the American Society of Mechanical Engineers (ASME),Anaheim, CA (United States),8-13 Nov 1992; Other Information: PBD: [1992]
Research Org:
Argonne National Lab., IL (United States)
Sponsoring Org:
National Aeronautics and Space Administration, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPOSITE MATERIALS; STRAINS; RESIDUAL STRESSES; NEUTRON DIFFRACTION; SILICON CARBIDES; ALUMINIUM OXIDES; WHISKERS 360603; MECHANICAL PROPERTIES