發送短信 : Crack nucleation and propagation in rounded cohesive granular media

  _____    _    _    _    _     _____     _____   
 /  ___|| | || | || | \  / ||  |  ___||  /  ___|| 
| // __   | || | || |  \/  ||  | ||__   | // __   
| \\_\ || | \\_/ || | .  . ||  | ||__   | \\_\ || 
 \____//   \____//  |_|\/|_||  |_____||  \____//  
  `---`     `---`   `-`  `-`   `-----`    `---`