matlab

4. (30 points) A tensile testing machine is used to determine the behavior of materials as they are deformed. In the typical test. A specimen is stretched as a steady rate. The force (load) required to deform the material is measured, as is the resulting deformation. An example set of data measured in one such test is given below: Load, lb 0 Length, inches (deformation) 2.0000 2000 4000 6000 7500 8000 8500 9000 9500 10000 2.0024 2.0047 2.0070 2.0094 2.0128 2.0183 2.0308 2.0500 2.0750 These data can be used to calculate the applied stress and resulting strain with the following equations = stress in Psi F = applied force in lb A = sample cross-section area in in2 = strain in in/in 1 = sample length o- original sample length a) Use the data provided to calculate the stress and the corresponding strain for the each data pair. The test sample was a rod of diameter 0.505 in., so you'll need to find the cross-sectional area to use in your calculations. b) Create an x-y plot with strain on the x-axis and stress on the y-axis. Connect the data points with solid black line, and use circles to mark each data point