Describir: Theory of flow and fracture of solids

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 /_   _//   / _ \\   /_   _//   / _ \\  |  __ \\    / _ \\  | |  | || 
   | ||    / //\ \\    | ||    | / \ || | |  \ ||  / //\ \\ | |/\| || 
  _| ||   |  ___  ||  _| ||    | \_/ || | |__/ || |  ___  |||  /\  || 
 /__//    |_||  |_|| /__//      \___//  |_____//  |_||  |_|||_// \_|| 
 `--`     `-`   `-`  `--`       `---`    -----`   `-`   `-` `-`   `-` 
                                                                      
  ______  
 /_   _// 
  -| ||-  
  _| ||_  
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