Text this: Buckling of triangular Mindlin plates under isotropic inplane compression

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