Field Investigation of Piping Systems for Vibration-Induced Stress and Failures

Paper No. 20

Field Investigation of Piping Systems for Vibration-Induced Stress and Failures J. C. Wachel, Pressure Vessel and Piping Conference, ASME Bound Volume #H00219, June 27-July 2, 1982 .

Vibration-induced piping stress is an area of major concern for piping designers and plant operators. Acceptable vibration amplitudes should be based upon applicable fatigue criteria; however, there are differences of opinion as to the criteria that should be used. This paper presents results of field investigations of piping systems with and without fatigue failures. These data have been compared to criteria given in the proposed standard ANSI/ASME OM-3-1981. This comparison showed that piping systems with measured stresses below the code allowables did not have failures, and those above did.