Accession Number:

AD0292138

Title:

FATIGUE PROPERTIES OF PLASTIC LAMINATES REINFORCED WITH UNWOVEN GLASS FIBERS

Descriptive Note:

Corporate Author:

FOREST PRODUCTS LAB MADISON WI

Personal Author(s):

Report Date:

1962-03-01

Pagination or Media Count:

21.0

Abstract:

Fatigue characteristics are presented for epoxytype plastic aminates at various resin contents and reinforced with layers of unidirectional unwoven glass fibers. Fatigue properties were determined by axially loading flat laminates that had alternate layers at 0, 5, 10, and 15 degrees to the principal axis. Properties are also presented for three special constructions of unwoven glass fiber laminates in which 1 71.4 percent of the fibers are parallel to the principal axis, 2 85.2 percent are paralel to the principal axis, and 3 all layers were parallel, with each layer supported by a carrier of 2-mil glass fabric. All experiments were conducted on unnotched specimens at zero mean stress after conditioning in an atmosphere maintained at 73 F and 50 relative humidity loads were applied parallel to the principal axis. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE