1. Reference problem#

1.1. Geometry#

The geometry is a cube with a side of \(1m\).

_images/10000000000002A9000001EAF7840BF799183D95.png

1.2. Meshing#

The mesh is made with 1 HEXA8.

1.3. Materials#

The material is BETON_RAG. The necessary characteristics are those related to the phenomena of chemical advancement as well as those concerning RAG.

Do not not use the material characteristics of « BETON_RAG » of this test case for studies. They are not physical, they are used for mathematical verification.

MBETRAG = DEFI_MATERIAU (

ELAS =_F (E = 32000.0E+06, # unit [Pa]

NU = 0.25, ALPHA = 0.0, ),

BETON_RAG = _F (

COMP_BETON = “” ENDO_FLUA_RAG “**,

# mechanical characteristics

ENDO_MC = 1.95,

ENDO_MT = 2.00,

ENDO_SIGUC = -35.00E+06, # [Pa]

ENDO_SIGUT = -3.18E+06, # [Pa]

ENDO_DRUPRA = 0.15,

# Creep

FLUA_SPH_KR = 89000.0E+06, # [Pa]

FLUA_SPH_KI = 22000.0E+06, # [Pa]

FLUA_SPH_NR = -156000.0E+06, # [Pa.J]

FLUA_SPH_NI = -410000.0E+06, # [Pa.J]

FLUA_DEV_KR = 42000.0E+06, # [Pa]

FLUA_DEV_KI = 22000.0E+06, # [Pa]

FLUA_DEV_NR = -117000.0E+06, # [Pa.J]

FLUA_DEV_NI = -840000.0E+06, # [Pa.J]

# Advancement of the RAG

GEL_ALPHA0 = 1.0E-04,

GEL_TREF = 25.0, # [°C]

GEL_EAR = 45000.0, # [1/°K]

GEL_SR0 = 0.20,

# Freeze Pressure

GEL_VG = 3.0E-03,

GEL_MG = 26000.0E+06, # [Pa]

GEL_BG = 0.080,

GEL_A0 = 0.20,

#

RAG_EPSI0 = 0.0,

# Hair pressure

PW_A = 3.0E+06, # [Pa]

PW_B = 2.0,

),

)

1.4. Boundary conditions#

1.4.1. For the cube free of lateral deformations#

These boundary conditions relate to modeling a.

The following movements are imposed on the faces:

  • BAS :DZ = 0

  • GAUCHE :DY = 0

  • ARRIERE :DX = 0

1.5. Modeling#

All models are 3D.