Accession Number:

AD0702731

Title:

IMPLOSIONS IN PRESSURE VESSELS, EXPERIMENTAL RESULTS

Descriptive Note:

Final rept. Jul 1965-Jun 1966

Corporate Author:

NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA

Personal Author(s):

Report Date:

1970-02-01

Pagination or Media Count:

88.0

Abstract:

Pressure vessels were subjected to implosion-generated hydrodynamic pressuresimpulses. The experimental results indicate the hydrodynamic pressure and the dynamic response of the pressure vessel vary, depending upon 1 model size, 2 implosion pressure, andor 3 distance from implosion graphs showing these relationships are presented. Implosion pressures up to 19,000-psi were obtained. The higher implosion pressures occurred in the 20,000 psi pressure vessel and caused damage to O-rings and mounting facilities inside the pressure vessel, and loosened pipe connections from the top cover plug. High-speed motion pictures showed that the collapse of air cavities was generally asymmetric and inconsistent. The critical model sizes for maximum pressure drop or energy release in pressure vessels were determined. The effects of implosion on pressure vessels can be reduced greatly by filling the test sphere with water.

Subject Categories:

  • Marine Engineering
  • Safety Engineering
  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE