Accession Number : AD0848751

Title :   The Effect of Aspect Ratio on the Fatigue Life of Short Boron Fiber Reinforced Composites,

Corporate Author : MONSANTO RESEARCH CORP ST LOUIS MO

Personal Author(s) : Lavengood, R. E. ; Gulbransen, L. B.

Report Date : FEB 1969

Pagination or Media Count : 28

Abstract : The flexural fatigue characteristics of boron fiber reinforced epoxy plastics were shown to be strongly dependent on the aspect ratio of the reinforcing fibers. These composites were evaluated in a stiffness limited, constant maximum stress mode. The failure mechanism was found to be a combination of interfacial failure and brittle rupture of the matrix at 45 degrees to the axis of the fibers. (Author)

Descriptors :   (*BORON ALLOYS, COMPOSITE MATERIALS), (*COMPOSITE MATERIALS, STRUCTURAL PROPERTIES), EPOXY RESINS, ISOTROPISM, TENSILE PROPERTIES, MODULUS OF ELASTICITY, CRACK PROPAGATION, WHISKERS(CRYSTALS), FAILURE(MECHANICS), LOADS(FORCES), STRESSES, FATIGUE(MECHANICS), FRACTURE(MECHANICS).

Subject Categories : Laminates and Composite Materials
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE