發送短信 : Stress concentrations in composites laminates

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