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Instrument accurately measures stress loads in threaded bolts

By Jr. F. R. Rollins

Abstract

Interferometric instrument response is linearly related to axial tensile stresses, and, under idealized conditions, measurement errors are within approximately plus or minus 1 percent. Ultimate accuracy of instrument depends on a number of variables, such as bolt material, dimensions, and geometry and uniformity of stresses and temperature

Topics: ELECTRONIC COMPONENTS AND CIRCUITS
Year: 1971
OAI identifier: oai:casi.ntrs.nasa.gov:19710000483

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