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The stress at the yield point is called the yield stress, σ Y The rest of the stress–strain curve beyond the elastic region is called the plastic region The total true strain is calculated from the equations given earlier The true stress–strain curve shown in Fig 126 can be approximately modeled by Eq (118)Plot stress vs strain curve for a metal On the graph depict (i) Yield point (ii) Fracture point (iii) Proportional limit (iv) Permanent set Two different types of rubber are found to have the stressstrain curves shown below in the figure below (i) In which significant ways do these curves differ from the stressstrain curve of a metal wireThe yield point is the point on a stressstrain curve that indicates the limit of elastic behavior and the beginning plastic behavior Yield strength or yield stress is the material property defined as the stress at which a material begins to deform plastically whereas yield point is the point where nonlinear (elastic plastic) deformation begins Prior ...