https://doi.org/10.1051/epjconf/20100644004
Evaluation of Residual Stresses using Ring Core Method
1
ŠKODA VÝZKUM s.r.o., Dynamic testing laboratory,
Tylova 1/57,
31600
Plzeň, Czech
Republic
2
ŠKODA VÝZKUM s.r.o., Computer modeling dept.,
Tylova 1/57,
31600
Plzeň, Czech
Republic
3
Technical University in Prague, Mechanical
Faculty, Technická
4, 16607
Prague, Czech
Republic
a e-mail : jaroslav.vaclavik@skodavyzkum.cz
The method for measuring residual stresses using ring-core method is described. Basic relations are given for residual stress measurement along the specimen depth and simplified method is described for average residual stress estimation in the drilled layer for known principal stress directions. The estimation of calculated coefficients using FEM is described. Comparison of method sensitivity is made with hole-drilling method. The device for method application is described and an example of experiment is introduced. The accuracy of method is discussed. The influence of strain gauge rosette misalignment to the evaluated residual stresses is performed using FEM.
© Owned by the authors, published by EDP Sciences, 2010
