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Collapse of thick-walled cylinders under external pressure

Conference · · Exp. Mech.; (United States)
OSTI ID:6177752
Hydrostatic collapse tests performed on thick-walled capped cylinders are described. Finite-element predictions which include the effects of end-cap stiffening, cross-section ovalities and material strain hardening are compared to experimental results. The analyses correctly predict the sequence of events leading to collapse, but experimental failure pressures are significantly below predictions. It is concluded that the von Mises yield criterion used in the analysis did not accurately represent the yield behavior of the 1018 steel tubing material of the test cylinders for the triaxial-stress conditions of interest.
Research Organization:
Battelle Pacific Northwest Lab., Richland, WA
DOE Contract Number:
AC06-76RL01830
OSTI ID:
6177752
Conference Information:
Journal Name: Exp. Mech.; (United States) Journal Volume: 22:2
Country of Publication:
United States
Language:
English