Acoustic emission for quality control of kevlar 49 filament-wound composites

Conference · Wed Jan 30 04:00:00 EST 1980

OSTI ID:5225011

Hamstad, M A

A study was made to relate production variables to changes in proof-test-generated acoustic emission (AE) from NASA-type filament-wound pressure vessels. Some of the deliberate manufacturing errors were matrix content, cure cycle, matrix component ratios, degraded fiber, moisture content, and winding tension. The 11-cm-diameter spherical pressure vessels were made by filament winding Kevlar 49/epoxy on aluminum mandrels. After proof testing, the vessels were burst tested. Certain production variables resulted in significant changes in AE amplitude and associated stress level.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5225011
• Report Number(s): UCRL-83783; CONF-801010-1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360403* -- Materials-- Polymers & Plastics-- Mechanical Properties-- (-1987)
ACOUSTIC EMISSION TESTING
ACOUSTIC TESTING
ARAMIDS
CONTAINERS
EPOXIDES
ERRORS
FILAMENTS
MATERIALS TESTING
NONDESTRUCTIVE TESTING
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
PRESSURE VESSELS
TESTING