r7.01.06 Behavioral relationship BETON_UMLV for concrete creep

Summary:

This document introduces the clean creep model UMLV (behavior BETON_UMLV), which is a way to model concrete creep (clean and desiccation).

It also details the writing and numerical processing of the model. The integration of the model (i.e. the updating of the constraints) is carried out according to an incremental scheme based on the total deformation increment provided by the global resolution scheme.

A description of the coupling between natural creep and the MAZARS model is added. The integration of the model (i.e. the updating of the constraints) is carried out according to a « total » scheme based on the total deformations accumulated since the initial state before loading.

• 1. Introduction
• 2. Assumptions
• 3. Model description
  • 3.1. Clean creep
  • 3.2. Desiccation creep
• 4. Discretization of the equations constituting the model
  • 4.1. Discretization of the constitutive equations of spherical creep
  • 4.2. Discretization of the equations constituting deviatoric creep
  • 4.3. Discretization of desiccation creep equations
• 5. Tangent matrix
• 6. Description of internal variables
• 7. Coupling between BETON_UMLV and MAZARS
  • 7.1. Implementation
  • 7.2. Traction response
• 8. Notations
• 9. Bibliography
• 10. Features and verification
• 11. Description of document versions