發送短信 : Quasi-static and dynamic behaviour of monolithic and sandwich beams

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