Accession Number : AD0867805

Title :   An Investigation of Fatigue Behavior of Reinforced Plastics for Primary Aircraft Structures.

Descriptive Note : Final rept. 1 Jan-31 Dec 69,

Corporate Author : IIT RESEARCH INST CHICAGO IL

Personal Author(s) : Rao, P. N. ; Hofer, K. E.

Report Date : FEB 1970

Pagination or Media Count : 151

Abstract : The following aspects of fatigue behavior of reinforced plastic composite materials were studied (1) Fiber surface finish effects on fatigue life of glass reinforced plastics. (2) Low cycle fatigue effects on mechanical properties of Graphite reinforced plastics (GRP). (3) Hollow glass prepreg composite performance in compression fatigue. (4) Graphite/Epoxy and Graphite/Scrim cloth/epoxy composite behavior in compression fatigue. (5) Quasi-isotropic GRP behavior in tension fatigue. (6) Effect of hostile Humidity-temperature environment on GRP. (7) Tension crack toughness tests and crack propagation in GRP. (Author)

Descriptors :   (*AIRFRAMES, REINFORCED PLASTICS), (*REINFORCED PLASTICS, FATIGUE(MECHANICS)), GLASS TEXTILES, GRAPHITE, CERAMIC FIBERS, EPOXY RESINS, FRACTURE(MECHANICS), CRACK PROPAGATION.

Subject Categories : Aircraft
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE