An investigation of the autofrettage of a reciprocating pump fluid cylinder

Conference · Wed Feb 01 04:00:00 EST 1984 · Am. Soc. Mech. Eng., (Pap.); (United States)

OSTI ID:6490648

Sutton, J L

An analytical method is presented for computing the autofrettage pressure to be used to sufficiently prestress a reciprocating pump fluid end. The fluid end configuration consists of a pair of ''tee''-intersecting cylindrical bores in a rectangular block. The analysis is based on a finite element method utilizing an initial stress method and is capable of computing elasto-plastic material stresses in machine components manufactured from strain-hardening materials while they are being subjected to a uniform pressure load. Residual stresses and strains are also computed following the unloading of a component. The method is compared to other theoretical solution techniques and experimental stress analyses completed on a simple ''thick-walled'' cylinder and a fluid end. The finite element analysis was confirmed to be a reasonable method for computing cylinder autofrettage pressures as well as being capable of computing the elastoplastic deformations of geometrically complex machine components.

• Research Organization: Gardner- Denver Compressors, Cooper Industries, Quincy, IL
• OSTI ID: 6490648
• Report Number(s): CONF-840201-
• Conference Information: Journal Name: Am. Soc. Mech. Eng., (Pap.); (United States) Journal Volume: 84-PET-8
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420200* -- Engineering-- Facilities
Equipment
& Techniques
COMPUTER CALCULATIONS
CYLINDERS
DEFECTS
FINITE ELEMENT METHOD
FLUID MECHANICS
FLUIDS
HYDRAULICS
MACHINE PARTS
MECHANICS
NUMERICAL SOLUTION
PRESSURE EFFECTS
PUMPS
STRAINS
STRESS ANALYSIS
WORKING FLUIDS