Bert, C. W.
Project director and professor, University of Oklahoma, Norman, Okla.
Mayberry, B. L.
Research engineer, now 2nd Lieutenant, U.S. Air Force, Tex.
Ray, J. D.
Co-project director; now assistant professor, Memphis State University, Memphis, Tenn.
Pages: 19 Published: Jan 1969
This paper reports on 54 biaxial-loading tests on fiber glass-epoxy laminates of three lamination schemes: parallel ply, cross ply, and quasi-isotropic. The tests were conducted on a specially designed fixture using a cable-pulley system in conjunction with a universal testing machine. The loadings were biaxial tension with 1:1 and 1:2 principal-load ratios. The contours of the reduced-thickness test sections of the flat specimens were designed to achieve a uniform-stress field.
fiber composites, reinforced plastics, mechanical properties, evaluation, tests
Paper ID: STP49828S