PPT Slide

Levy-Mises Equations

• Saint-Venant (1870): Plastic strain increment proportional to principal stress

• Levy (1870, 1871), Mises (1913): Generalization of Saint-Venant's idea

• Levy-Mises theory:

  • 1-Negligible elasticity
  • 2- Increment of strain or strain rate is coaxial with principal stress

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