Question Completion Status: YURT Which of the following is not true? true fracture stress ultimate stress fracture stress proportional limiy elastic limit yield stress 5 elastic yielding strain necking region hardening elastic plastic behavior behavior Conventional and true stress-strain diagrams for ductile material (steel) (not to scale) Note: If you cannot view the image, please open it in a new tab. At 3, stress reaches to UTS. If the sample is unloaded between the curve points 0 and 1. it will go back to 0. At 4. plastic deformation is non-uniform. At 2. Hook's law applies. Moving to the next question prevents changes to this