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

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Text this: Energy absorption of thin-walled empty and foam-filled tubes