Impacting of Pipes on Elastic Supports

[+] Author and Article Information
R. Kumar

Desein Consulting Engineers, New Delhi, India

J. Pressure Vessel Technol 108(4), 542-546 (Nov 01, 1986) (5 pages) doi:10.1115/1.3264830 History: Received January 16, 1985; Revised December 11, 1985; Online November 05, 2009


Piping systems are often provided with supports and restraints with gaps to reduce the thermal stresses and to limit the motion caused by other loads, e.g., due to pipe rupture or seismic effects. However, the presence of the gap causes the pipe to impact on the support under dynamic loading. In this paper the impacting effects have been studied using a simple model. The effect of support rigidity on the impact force, bending moment and deflection of the pipe has been evaluated. The bending moment at the impact loading is found to decrease up to a certain value of the support stiffness beyond which it increases. However, the impact force increases and the overall deflection at the impact location decreases continuously as the support stiffness is increased. The results are presented in nondimensional form as ratios of the appropriate quantities for the simply supported pipe with no elastic restraint. Thus, they provide useful information for design considering impact effects.

Copyright © 1986 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