Simulated-service cycle differs from conventional proof-test cycle in that specimen is subjected to sine-wave variation of stress instead of prolonged steady stress. Simulated-service testing is performed at low and high temperatures as well as at room temperatures. (Flaws initiated by severe stresses of proof testing can later develop into leaks during service, thus effectively reducing useful service life.) Method may be useful for commercial thin-wall vessels.
Measuring Cyclic-Stress Properties of Pressure Vessels
NASA Tech Briefs ; 6 , 1
1982-09-01
Miscellaneous
No indication
English
NTIS | 1963