Draw a Stress/Strain graph of a mild tensile steel and identify the limit of proportionality and the yield point

3. A rod-shaped MgO specimen with round cross section is tested with the three-point bend method. What is the calculated minimum radius without fracture if the applied load is 5560 N, the flexural strength is 105 MPa, and the separation between the two support pins is 45 mm?

Tag question Consider the graph below for 3 metals which have been cold-worked. From the graphs, which of the following statements are true? Stress Select one or more: a. C. Strain & A e. B C b. B and C have similar hardness; C has greater brittleness B is softer than C and has nearly similar ductility A is harder than C and is more ductile d. A and B have similar hardness; A has greater brittleness A is harder than C and is less ductile f. B is harder than C but has nearly similar ductility 5 up i A C

Describe the relationship between stress and strain according to Hook's law?