This section deals with stress-strain relations for plastic solids, essential for understanding of the subsequent exposition. Plastic properties of solids, the most important feature of which is the irreversibility of deformation, are exhibited in various ways depending on material properties, range of applied loads, frequency and rate of loading, temperature etc. This variety account for the existence of numerous plasticity theories, each adequately describing plastic deformation under certain conditions. We shall dwell here on a case of slow loading under moderate temperatures, when the rate of loading and the temperature have unessential influence on plastic deformation and may be ignored.


Plastic Strain Yield Surface Deformation Theory Flow Theory Plastic Strain Increment 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • A. N. Guz
    • 1
  1. 1.Institute of MechanicsNational Academy of Sciences of UkraineKievUkraine

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