A UNIVERSAL METHOD FOR TIGHTNESS TESTING OF PLASTIC PIPELINES
A method for tightness testing of pipelines made from viscoelastic materials obeying the power-law is described. Both theory and experiments show that creep effects will be ”frozen in” during a certain period of time, long enough for measuring the tightness of a pipeline or vessel. The time sequence may be scale up and down as desired, given that the loading programme is kept constant. The limiting factors in determining the require-ments for approval are therefore the precision of pressure measurement and the possibility of keeping temperature variations low during testing. A proposal is given for testing of pipelines in less than 4 hours
Författare
THOR MELAND
Årgång
2000
Nummer
4
Sida
255-260
Nyckelord
plastic, pipeline, testing
Utgåva