MECHANICAL BEHAVIOR OF FIBER-REINFORCED COMPOSITE MATERIALS.
Annual rept. no. 2, Dec 65-Dec 66,
PHILCO-FORD CORP NEWPORT BEACH CALIF AERONUTRONIC DIV
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It is generally agreed that a unidirectional composite is the fundamental unit from which composite structures are constructed. By subjecting this material to three separate loading conditions, that is, axial, transverse, and shear loadings, the basic stiffness and strength properties of the composite can be predicted in terms of the material and geometric properties of the constituents. These micromechanics analyses are presented, along with a detailed presentation of numerical results and a discussion of their practical significance. Analytical results have been compared with other analyses and with experimental data generated during this investigation. In addition, a preliminary discussion is given to the cyclic fatigue behavior of unidirectional composites. An S glass-epoxy system has been utilized in tests to date. Properties of boron-epoxy composites, including cross-ply and angle-ply laminates subjected to uniaxial tension, have been experimentally determined and results compared with analytical predictions. The satisfactory agreement obtained supports the assumption that the analysis, orginally verified for glass-epoxy composites, is equally valid for boron-epoxy systems. Author
- Laminates and Composite Materials