NASA NTRS · 19850037407
Three dimensional crack closure measurements
Abstract
This paper describes fatigue crack growth and retardation experiments conducted in polycarbonate test specimens. This transparent model material allowed optical interferometry measurements of through-the-thickness fatigue crack opening profiles. Crack surface displacements were then obtained through the specimen thickness and are discussed in terms of three-dimensional aspects of fatigue crack closure.
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Ray, S. K., Andrew, S. P.. 1985-01-01. Three dimensional crack closure measurements. https://ntrs.nasa.gov/citations/19850037407
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