Engineering properties of a filament-wound Kevlar 49/epoxy composite

Journal Article · · Compos. Technol. Rev.; (United States)

OSTI ID:6617324

Hahn, H T; Chin, W K

The effect of a flywheel service environment on transverse tension and compression, and longitudinal compression and shear properties of a filament-wound Kevlar/epoxy composite are evaluated. Shear strength and modulus were reduced by moisture desorption during preconditioning in a vacuum at 75 C, although room temperature strength and modulus increased for longitudinal compression. The desorption induced cracking of the laminate plies through increased residual stresses, which at 25 C were 15 MPa, higher than the transverse strength. The 75 C temperature caused lower strength and moduli except for longitudinal tension, and the complete test results are listed.

• Research Organization: Washington University, St. Louis, MO
• OSTI ID: 6617324
• Journal Information: Compos. Technol. Rev.; (United States), Journal Name: Compos. Technol. Rev.; (United States) Vol. 3; ISSN CMTRD
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250500 -- Energy Storage-- Flywheels
36 MATERIALS SCIENCE
360303* -- Composite Materials-- Mechanical Properties-- (-1987)
ARAMIDS
COMPOSITE MATERIALS
EPOXIDES
FILAMENTS
FLYWHEELS
MATERIALS
MECHANICAL ENERGY STORAGE EQUIPMENT
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
SYNTHETIC MATERIALS
TEMPERATURE EFFECTS