Deformation behavior of continuous-fiber metal-matrix composite materials

摘要: The deformation behavior of continuous-fiber, metal-matrix composites was studied in terms ofin situ the matrix and fibers. X-ray diffraction techniques were employed to monitor stress-strain composite components (matrix fibers) as a function total behavior. This experimental technique provided unique approach study since response could be measuredin while under load. Furthermore, influence residual stress, component mechanical properties, stress interactions between fibers incorporated into analysis conducted on 2024 aluminum reinforced with tungsten fibers, boron Composites tested specially-designed, tensile device which served diffractometer specimen holder such that experiments performed incrementally deformed uniaxial tension. Experimental results indicated that, except for effects, exhibited rule-of-mixture s stage I, II, regions. Measurements obtained perpendicular fiber axis during tests negligible stresses developed result Poisson’s ratio differences Composite yield significantly influenced by present individual components. Residual parallel included rule-of-mixtures considering amount prestrain each component.