Thick-wall Kevlar 49/Epoxy pressure vessels

Conference · Sun Jan 01 00:00:00 EST 1984

OSTI ID:5333354

Guess, T R

The feasibility of thick-wall composite vessels for very high pressure applications is demonstrated. Prototype vessels, in both spherical and cylindrical geometries, were designed, fabricated and burst tested. It is shown that experimental burst pressures are in excellent agreement with predicted values for burst pressures up to 60 ksi. Each unit consisted of a thin, seamless, copper liner with stainless steel fill stems and a filament-wound Kevlar 49/epoxy outer shell. Analysis of vessel performance accounted for liner thickness and yield strengths, composite thickness, mechanical properties and fiber volume fraction, and stress concentrations caused by the fill stem. Spherical vessels of three different sizes (inside diameters of 2.15 inches, 4.0 inches and 5.3 inches) with either 30 ksi or 60 ksi design burst pressure are discussed. Also, cylindrical vessels with identical liners but of two different composite thicknesses are described. These vessels achieved 50 ksi and 57 ksi burst pressures, respectively. In addition to the design considerations alluded to throughout the paper, the stress state in a thin metal liner during cyclic loading and the life prediction of composite vessels under sustained loading are discussed.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5333354
• Report Number(s): SAND-83-1356C; CONF-840459-1; ON: DE84003102
• Resource Relation: Conference: 29. national SAMPE symposium, Reno, NV, USA, 3 Apr 1984
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
PRESSURE VESSELS
COMPOSITE MATERIALS
DESIGN
DESTRUCTIVE TESTING
FABRICATION
ARAMIDS
CYLINDRICAL CONFIGURATION
EPOXIDES
LINERS
SPHERICAL CONFIGURATION
STRESSES
YIELD STRENGTH
CONFIGURATION
CONTAINERS
MATERIALS
MATERIALS TESTING
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
SYNTHETIC MATERIALS
TESTING
420205* - Engineering- Transport & Storage Facilities- (1980-)