A HYBRID TECHNIQUE FOR RESIDUAL STRESS ANALYSIS THROUGH STRESS FUNCTION FITTING

Authors

  • MARCO ANTONIO MARTINS CAVACO LABMETRO - EMC MECHANICAL ENGINEERING DEPARTMENT FEDERAL UNIVERSITY OF SANTA CATARINA

Keywords:

RESIDUAL STRESS, STRESS FUNCTION, HYBRID

Abstract

THIS WORK PRESENTS A HYBRID EXPERIMENTAL THEORETICAL TECHNIQUE FOR RESIDUAL STRESSES ANALYSIS OF MECHANICAL COMPONENTS. IT WAS USED THE BLIND HOLE TECHNIQUE ALONG WITH THE ELECTRONIC SPECKLE PATTERN INTERFEROMETRY (ESPI) METHOD AND AIRY STRESS FUNCTIONS FOR THE DETERMINATION OF THE PRINCIPAL STRESS COMPONENTS. DISPLACEMENT INFORMATION IS FITTED IN ORDER TO EXTRACT AIRY STRESS FUNCTION COEFFICIENTS. THE RESULTS DEMONSTRATE THAT THIS TECHNIQUE IS OF GREAT UTILITY TO DETERMINE THE AVERAGE PRINCIPAL STRESS AND LOCAL STRESS GRADIENTS.

Author Biography

MARCO ANTONIO MARTINS CAVACO, LABMETRO - EMC MECHANICAL ENGINEERING DEPARTMENT FEDERAL UNIVERSITY OF SANTA CATARINA

ASSOCIATE PROFESSOR III

MECHANICAL ENGINEERING DEPARTMENT

FEDERAL UNIVERSITY OF SANTA CATARINA

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Published

2011-09-05

Issue

Vol. 8 No. 3 (2011)

Section

Articles

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