أرسل هذا في رسالة قصيرة: Fracture capacity of girth welded pipelines with 3D surface cracks subjected to biaxial loading conditions

             ___      ______   __   __     _____  
  ____      / _ \\   /_   _//  \ \\/ //   / ___// 
 |    \\   / //\ \\  `-| |,-    \ ` //    \___ \\ 
 | [] ||  |  ___  ||   | ||      | ||     /    // 
 |  __//  |_||  |_||   |_||      |_||    /____//  
 |_|`-`   `-`   `-`    `-`'      `-`'   `-----`   
 `-`