Bulkhead rupture disc for solid propellant missiles

Patent · Tue Apr 19 04:00:00 EDT 1988

OSTI ID:7033632

Hibler, Sr, D R; Sigle, Jr, S P

A missile bulkhead rupture disc assembly for disposition between a first stage of propellant and a second stage of propellant and for enabling release of the second stage of propellant subsequent to release of the first stage of propellant is described comprising: a generally circular element comprised of a frangible material and having a first burst pattern with a line of weakness completely circumscribing a central portion of the element. The central portion of the element having structure defines an aperture. The element has a second burst pattern comprising lines of weakness each extending in a substantially radial direction outwardly from the line of weakness of the first burst pattern. Each adjacent pair of the lines of weakness of the second burst pattern is spaced from each other and defines generally sector-shaped segments of the elements. The frangible material of the element has a tensile strength of a certain, first value in the vicinity of the line of weakness of the first burst pattern, and the frangible material of the element has a tensile strength in the vicinity of the lines of weakness of the second burst pattern of a second value which is higher than the first certain value.

• Assignee: Fike Corp., Blue Springs, MO
• Patent Number(s): US 4738099
• OSTI ID: 7033632
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330600* -- Advanced Propulsion Systems-- Vehicle Design Factors
EQUIPMENT PROTECTION DEVICES
FAILURES
FUEL SYSTEMS
FUELS
MATERIALS
MECHANICAL PROPERTIES
MISSILES
PLATES
PROPELLANTS
RUPTURES
SOLID FUELS
TENSILE PROPERTIES