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Physics of Stress Measurements

  • Arno Zang
  • Ove Stephansson

Abstract

Stresses cannot be measured directly. Stress determination is made indirectly, e.g. by the measurement of strain. Deformation values obtained from an unbalanced body approaching equilibrium in combination with theoretical knowledge about constitutive behaviour (stress-strain relationship) allows us to evaluate the state of stress existing in any deformable body. The physics of stress measurements can be subdivided into six methodologies (see Table 6.1 ). For rocks and minerals, some modifications of these techniques used in material sciences are required.

Keywords

Residual Stress Fringe Pattern Brazilian Test Isochromatic Fringe Active Grid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • Arno Zang
    • 1
  • Ove Stephansson
    • 1
    • 2
  1. 1.GFZ German Research Centre for GeosciencesPotsdamGermany
  2. 2.GFZ and KTH StockholmSweden

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