“? Plot the engineering stress versus engineering strain graphs in the low strain”
“? Plot the engineering stress versus engineering strain graphs in the low strain (<1%) region to determine Youngs Modulus (E) 0.1% proof stress and strain at yield. Note that a linear regression line can be created easily in Excel for the elastic region by creating an additional column of strain values and adding the offset (0.001). By c licking on the new line and selecting the linear fit option thi s will produce a regression line . The option to display the regression equation will provide you with the slope (E). ? Plot the engineering stress versus engineering strain and true stress versus engineering strain graphs from zero strain up to failure. ? De termine the ultimate tensile strength fracture stress ductility and work to fracture . ? Determine the relationship between Vickers hardness and Yield Strength ? = x (VHN) g. ? Examine the fracture surfaces and describe the fracture process. ? Use CES Edupack ( available in the Mechanical Engineering 5 th floor cluster under Prog...