Frequently pressure vessels are subjected to a proof test for the purpose of establishing a safe allowable working pressure. Various techniques are commonly employed. They include the use of electric resistance strain gages@ brittle lacquer@ deflection dial indicators@ or a combination thereof. In addition@ a test to destruction is often used for the purpose of establishing a safe working pressure.The purpose of this paper is not to investigate the adequacy of the numerous tests for evaluating a safe working pressure but to analyze the significance of the data thus obtained. For simplicity the discussion is limited to unaxial and biaxial states of stress only.
BULLETIN 38-1957 history
1957BULLETIN 38-1957 PROOF-TESTING PRESSURE VESSELS DESIGNED FOR INTERNAL PRESSURE