Introduction to Experimental Stress Analysis
It is important that design calculations are verified, particularly when the design is a complex structure, such as an air vehicle wing box or fuselage. A number of factors are used in the analytical analysis, essentially to compensate for lack of specific knowledge generally associated with materials. These factors are referred to as factors of ignorance or “fudge” factors. These factors are used essentially to enable the design to proceed with the analysis being revisited when there is better information available.