DEVELOPMENT OF BUOYANCY MATERIAL FOR THE DEEP SUBMERGENCE SEARCH VEHICLE. EVALUATION OF SYMPATHETIC IMPLOSION OF BUOYANCY MODULES
Abstract
This Laboratory is conducting work directed toward the development of a 34 pcf density buoyancy material for the Deep Submergence Search Vehicle (DSSV). One of the approaches being followed is the development of a buoyancy module. The module currently under consideration is in the shape of a right hexagonal prism and consists of a 3 in. O.D. hollow glass sphere centrally embedded in a matrix of syntactic foam. This report presents the results of tests which demonstrate that sympathetic implosion at high hydrostatic pressure is a significant problem with regard to glass sphere modules. Tests were conducted on multiple module specimens wherein one module was 'weakened' to cause premature failure with the result that remaining modules failed by the phenomenon of sympathetic implosion. Sympathetic implosion was exhibited at hydrostatic pressures ranging from 5,600 to 14,800 psi. The Laboratory is initiating work on several approaches which have merit for eliminating the sympathetic implosion problem.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 07, 1968
- Accession Number
- AD0834133
Entities
People
- Frederick Vath
- William Colletti