r7.01.27 Law of Behaviour BETON_REGLE_PR# Summary: This documentation presents the BETON_REGLE_PR law implemented by Sixense- NECS as part of the free code_aster community. It is a regulatory law [bib1], written by combining two 1D laws. 1. Presentation of the BETON_REGLE_PR law 2. Description of internal variables 3. Elementary stiffness matrices 4. Limitations of the law 5. Features and validation 5.1. Functionality 5.2. Verification & Validation 6. Bibliography 7. Description of document versions