Structural Performance of Cylindrical Pressure Housings of Different Ceramic Compositions Under External Pressure Loading. Part 1. Isostatically Pressed Alumina Ceramic.
Abstract
Ten monocoque cylinders, 18-inches (length) by 12-inches (outer diameter, OD) by 0.412 inches (thickness), fabricated from 96-percent alumina ceramic were assembled into external pressure housings and experimentally evaluated under short-term, static, and cyclic pressure loadings. This study was undertaken as part of a program to promote the application of ceramics to large external pressure housings for underwater vehicles. Pressure testing was performed to generate structural performance data that could be used to establish design criteria for external pressure housings constructed by using 96-percent alumina ceramic as the primary hull material. Design curves for 96- percent alumina-ceramic housings are presented that relate the maximum number of operational dive cycles to the maximum allowable stresses in the ceramic housing during each dive cycle. The 96-percent alumina ceramic has been found to be a reliable structural material for the fabrication of cylindrical external pressure housings with a minimum fatigue life of 1,000 dive cycles to nominal design stresses of - 160,000 psi in the hoop direction.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1993
- Accession Number
- ADA279669
Entities
People
- J. D. Stachiw
- R. P. Johnson
- R. R. Kurkchubasche
Organizations
- Naval Command, Control and Ocean Surveillance Center