Accession Number:

AD0270514

Title:

ELASTIC GENERAL INSTABILITY OF RING-STIFFENED CYLINDERS WITH INTERMEDIATE HEAVY FRAMES UNDER EXTERNAL HYDROSTATIC PRESSURE

Descriptive Note:

Corporate Author:

DAVID TAYLOR MODEL BASIN WASHINGTON DC

Personal Author(s):

• Blumenberg, William F.
• Reynolds, Thomas E.

Report Date:

1961-12-01

Pagination or Media Count:

28.0

Abstract:

A machined ring-stiffened cylinder was subjected to hydrostatic pressure to investigate the effect of various sizes of central heavy frames on its elastic overall-buckling strength. The cylinder was tested initially with a large central frame, which was systematically reduced by machining after each successive nondestructive test until it was the size of a typical frame. The tests demonstrated that a heavy frame can be an effective substitute for an internal bulkhead in increasing the general-instability strength of a cylindrical pressure hull. A short empirical solution based on the Levy ring formula has been developed which yields results in close agreement with the experimental findings.

Descriptors:

• *SHELLS(STRUCTURAL FORMS)
• *MODEL TESTS
• *BUCKLING
• *RING STIFFENED CYLINDERS
• *HYDROSTATIC PRESSURE
• STABILITY
• INSTRUMENTATION
• PRESSURE HULLS
• TABLES(DATA)
• VIBRATION
• STRUCTURES
• TEST METHODS

Subject Categories:

• Submarine Engineering
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE