Residual stress determination by optical interferometric measurements of hole diameter increments

Vladimir Sergeevich Pisarev,Igor Odintsev,Svyatoslav Eleonsky,Andrey Apalkov

Optics and Lasers in Engineering（2018）

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摘要

•Two side measurements when a single probe hole is drilled.•Combined use of reflection hologram interferometry and ESPI.•Interference fringe patterns of high density.•Determination of high level residual stress.•Maximum possible accuracy of residual stress determination.

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关键词

Residual stress,Hole-drilling method,Electronic speckle-pattern interferometry,Reflection hologram interferometry,Welded joints

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