Program UNIDIR

This program performs a stress-strain analysis for a unidirectional composite laminate, in accordance with the discussion presented in Sections 1 and 2 of Chapter 5.

The program should be downloaded and saved to a convenient folder location on your computer. Once the program is initiated it will ask whether you wish to read several input values “FROM A FILE? (Y/N)” If you enter a “Y” (or “y”, meaning “yes”) the program will search for a file containing the needed information. If the file is not found you will be directed to enter the values from the keyboard.

The results of all calculations are printed both to the screen and to a file named “Answer.txt”. All files created during execution of the program are stored in the folder that contains program UNIDIR.

Warning: The user must input all values using a consistent system of units. For example, using the SI system of units a typical value of Young’s modulus might be 200 GPa = 200 x 10⁹ N/m², while a typical ply thickness might be 0.125 mm. These values should be input as 200.0E9 and 0.000125, respectively.