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

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Text this: A new generalized Drucker–Prager flow rule for concrete under compression