The Impact of Experimental Stress Analysis in the Eighties-And Beyond

Practical Experimental Stress Analysis (ESA) techniques are considered in terms of where they were, are now, and where they appear to be headed. The electrical resistance strain gage, with associated instrumentation, remains the overwhelming favorite when measurements are made at points. The impact of computer technology, primarily through software capabilities, has significantly enhanced data acquisition, presentations, and accuracy. Brittle coatings and variations of the photoelastic technique dominate the practical industrial scene when “full-field” stress information and understanding are of primary interest. Industrial case histories are included and illustrate present day thinking and technology.