Flow Stress | Yield (engineering), Engineering, Work hardening, Plastic deformation, Plastic deformation in solids, Empirical formula, Crystal structure. Cet article n’est pas disponible.Flow Stress | Yield (engineering), Engineering, Work hardening, Plastic deformation, Plastic deformation in solids, Empirical formula, Crystal structure

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Flow stress is defined as the instantaneous value of stress required to continue deforming the material - to keep the metal flowing. It is the yield strength of the metal as a function of strain, which can be expressed: Yf = Ken. Yf = Flow stress, MPa e = True strain K = Strength Coefficient, MPa n = Strain hardening exponent. Hence, Flow stress can also be defined as the stress required to sustain plastic deformation at a particular strain.