On the Determination of Biaxial Residual Stress Fields from Global Indentation Quantities

• In the present study, quantitative relations for the determination of surface residual stresses, using sharp indentation testing, are presented. The relations are based on previous results for equi-biaxial residual fields but further developed to apply also for a general situation. The present analysis relies on theoretical methods, but the results are validated using previous experimental and numerical findings. Cone indentation of classical Mises elastoplastic material behavior is assumed throughout the investigation for clarity but not out of necessity. Further development for a complete characterization of a general residual stress field is discussed in some detail.

Nyckelord

Residual stresses

General stress fields

Contact area

Sharp indentation

Mises plasticity

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