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

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Text this: Time-harmonic response of a vertical crack in plates