Optimization of Multiple Safety Factors in Structural Designs,
Abstract
This paper presents a method for optimization of safety factors and testing procedures to simultaneously minimize weight and maintain acceptable reliability and testing costs. A load combination rule for two categories of load with different safety factors is analyzed by structural reliability methods to estimate the probability of failure as a function of the two safety factors. As a part of this analysis, a procedure is developed for modifying published strength distributions to reflect a successful test to a specified fraction of design ultimate load. A cost model is constructed including the expected cost of failure, the value of saving weight, and the cost of development and/or proof tests. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1981
- Accession Number
- ADP000076
Entities
People
- E. D. Eason
- J. M. Thomas
- P. M. Besuner
Organizations
- Exponent