Please No C++ONLY C source program in standard ANSI C format only. No other format will be accepted. INTRODUCTION For a solid body, stress indicates the strength of the material from which the body is made, while strain measures the deformation of the body under a force. Strain may be calculated by the following equation: lo where strain (unitless) final specimen length lo initial specimen length Through tension and compression tests, the stress and strain can be related to each other and give insight into how much force a material can experience without undue deformation or failure. Once stress and strain data have been collected, they can be plotted to produce a stress-strain diagram. A sample stress-strain diagram is shown below rue fracture stress stress fracture l limi ield elastic yielding necking strain elastic plastic behavior Conventional and true stress-strain diagrams for ductile material (steel) (not to scale) Strain is plotted on the x-axis, and stress is plotted on the y-axis. There are four regions: the elastic region, yielding, strain hardening, and necking. For the elastic region, stress and strain can be related through Hooke's law where is the stress in ksi, E is the Young's modulus (a material-specific constant), and is the strain (unitless-often expressed as in/in) In the yielding region, the stress is In the strain-hardening region, the stress and strain can be empirically related through Hollomon's equation constant while the strain varies. where s the strain, 6pLis the strain at the elastic limit (a material-specific constant, and K and n are material-specific constants. In the necking region, the cross-sectional area of the sample begins to decrease in a localized area. It is difficult to empirically relate stress and strain At the fracture stress, the material sample breaks. An input data file called strain tests contains test results for 304 stainless steel samples. The first record line of the input file is the control number, which defines the number of records to be read into the program the first column is the final length of the sample and the second column is the initial length of the sample. The input file is comma delimited. . Each succeeding record line has two columns, where