Standard: WRC BUL 255

EXPERIMENTAL INVESTIGATION OF COMMERCIALLY FABRICATED 2:1 ELLIPSOIDAL HEADS SUBJECTED TO INTERNAL PRESSURE

This standard is available for individual purchase.

or unlock this standard with a subscription to IHS Standards Expert

IHS Standards Expert subscription, simplifies and expedites the process for finding and managing standards by giving you access to standards from over 370 standards developing organizations (SDOs).

FEATURES & BENEFITS
  • Maximize product development and R&D with direct access to over 1.6 million standards
  • Discover new markets: Identify unmet needs and discover next-generation technologies
  • Improve quality by leveraging consistent standards to meet customer and market requirements
  • Minimize risk: Mitigate liability and better understand compliance regulations
  • Boost efficiency: Speed up research, capture and reuse expertise
For additional product information, visit the IHS Standards Expert page.

HOW TO SUBSCRIBE
For more information or a custom quote, visit the IHS Contact Us page for regional contact information.
Scope:

Experimental results of three commercially fabricated 2:l ellipsoidal heads are reported. The models were subjected to increments of internal pressure until collapse occurred. At each load level, the pressure, strains, and deflections were recorded on an Automatic Data Acquisition System. The data reduction was primarily based upon a computer program developed by FWDC. From the raw data, strain versus pressure and deflection versus pressure plots were generated. Isopressure plots of strain and deflection versus meridional position were also generated for several circumferential locations. Plots of von Mises equivalent stress values versus pressure were obtained for each rosette location. In almost all cases a regression analysis was performed and then the limit of linear behavior was determined. In addition, isostress plots of the von Mises equivalent stress, circumferential stress and meridional stress components (total, membrane and bending) versus meridional location were generated for a given pressure at a given circumferential location, on both the inside and outside surfaces of the vessel. The initial yield pressure, i.e., the pressure level at which a change from linear to nonlinear behavior began, was determined at each of the strain and LVDT gage locations. This Bulletin provides extensive data to determine the validity of the theoretical predictions of limit pressure via elastic plastic computer programs and the effects of geometrical and yield strength variations in actual fabricated heads.

Organization: Welding Research Council
Document Number: wrc bul 255
Publish Date: 1979-12-01
Page Count: 53
Change Type: NEW ADDITION
Available Languages: EN
DOD Adopted: NO
ANSI Approved: NO
Most Recent Revision: YES
Current Version: YES
Status: Active
Advertisement
Advertisement
Advertisement
Advertisement