Mathematical and Experimental Investigation Into the Auto-Frettaging of High-Pressure Mudpump Fluid Ends

[+] Author and Article Information
A. H. Van Der Krogt

Koninkijke/Shell, Exploratie en Produktie Laboratorium, Rijswijk, The Netherlands

J. Pressure Vessel Technol 100(1), 39-45 (Feb 01, 1978) (7 pages) doi:10.1115/1.3454432 History: Received June 22, 1977; Online October 25, 2010


The fluid ends on high-pressure triplex mud pumps are exposed to high cyclic internal pressures. These fluid ends should therefore have adequate elastic strength and fatigue life under operating conditions. A method for increasing the fatigue life of the fluid ends is the auto-frettage process. The elastico-plastic behavior of fluid ends manufactured with side bores subjected to internal pressure has been studied both mathematically and experimentally. The mathematical analysis was carried out using an elasto-plastic finite-element approach. The experimental study, using direct strain-gage measurements, confirmed the mathematical analysis.

Copyright © 1978 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In