PHOTOELASTIC STRESS ANALYSIS OF A PRESSURE VESSEL
Abstract
A study was conducted to determine the stress distribution in 2 redesigned couplings being considered for use as part of the pressure vessel. The stress distributions were determined by using conventional 3-dimensional photoelasticity techniques on 0.533-scale models manufactured from an epoxy resin, Hysol 4290 (formerly known as Hysol 6000-OP). The loading applied to the model was internal pressure. The tensile stresses in the thread relief grooves were reduced to 4.3 and 4.7 times the internal pressure (in the opposed and staggered designs, respectively) by increasing the radius of the fillet. The highly localized stresses in the fillets at the roots of the sectored threads were not significantly reduced by incorporating 6 thread sectors in the tube end of the coupling in place of the 4 thread sectors. The stress distribution in the thread sectors was not appreciably influenced by the relative position of the thread sectors on the two ends of the coupling. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 31, 1961
- Accession Number
- AD0263240
Entities
People
- W.f. Riley
Organizations
- IIT Research Institute