Pipeline Stress Analysis Through Stress Function Fittings

AUTOR(ES)

Cavaco, M.A.M., R.Viotti, M., Albertazzi Jr, G.A.

FONTE

Lat. Am. j. solids struct.

DATA DE PUBLICAÇÃO

17/09/2018

RESUMO

Abstract This work presents a hybrid experimental technique for stress analysis in pipes due to soil-pipe interaction. It was used a variation of Digital Speckle Pattern Interferometry (DSPI) combined with a small indentation setup for acquiring radial displacement points. Data collected are fitted under the Airy stress functions method for the determination of displacements and strain components. The radial displacement data is fitted in to extract Airy stress function coefficients in a short combination selected specifically for the analysis of stress fields in pipes. This technique is of great utility as an auxiliary approach to the actual field data compilation.

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