Structural Redundancy for Continuous and Discrete Systems
Abstract
The design, inspection and structural redundancy interactions (DIRT) concept was first introduced at a Ship Structure Committee sponsored symposium in Williamsburg, Virginia, USA in 1983. In order to produce structures that are safer and more efficient in performance throughout their lifetime and in which a degree of damage tolerance can be planned, it is important that the full effects of redundancy are allowed for in the design validation process. The purpose of this study is to assess the role of redundancy in marine structures in the context of reserve and residual strength. The study has included a review of the basic terms and definitions of redundancy and reserve and residual strength in the context of both discrete and continuous structural topologies and has then examined criteria for defining overall stability in such topologies. A series of numerical studies on simple structural forms, representative of both discrete and continuous structures, has been undertaken and used to illustrate the major aspects and problems involved. The study concludes with recommendations for a range of future projects with the goals to examine and quantify more rigorously the role of redundancy on the reserve and residual strength characteristics of specific ranges of marine structures.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1991
- Accession Number
- ADA247671
Entities
People
- J. F. Garside
- P. K. Das