Collapse Tests of Round Non-Ferrous Tubing under External Hydrostatic Pressure

摘要

The results of limited collapse tests with round, nonferrous tubing, under radial and axial external hydrostatic pressure, are reported herein and are compared with the predictions of two existing collapse theories. The agreement of both theories with the data is variable and generally exceeds plus or minus ten percent. An empirical form holds promise of more accurate collapse pressure predictions, but the data are too limited for satisfactory definition of the terms. (Author)