SEDL / STP / STP438-EB / STP43808S

In Situ Measurements of Deformation Behavior of Individual Phases in Composites by X-Ray Diffraction

Cheskis, H. P.
Graduate student, Drexel Institute of Technology, Philadelphia, Pa

Heckel, R. W.
Associate professor, Drexel Institute of Technology, Philadelphia, Pa

Pages: 16    Published: Jan 1968

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Abstract

X-ray diffraction techniques were used to measure the lattice strains in the matrix phase of aluminum-boron composites and both the fiber and matrix of a copper-tungsten composite. The aluminum-boron composites were deformed by bending; the copper-tungsten composite was deformed in tension. The data are presented in terms of both lattice strain and stress as a function of macroscopic composite strain in the principal stress direction. This X-ray technique is shown to be useful in providing the data necessary to compare composite material theory.