3.9.9 Pore-thermal model change

Product: Abaqus/Standard

Elements tested

C3D8PT C3D8RPT

Features tested

Coupled pore-thermal elements are removed.

Problem description

Model:

The models have dimensions 40.0 × 40 in the x–y plane, with an out-of-plane dimension of 5.0.

Material:

Modulus	88.7 × 10⁹
Density	1922
Expansion	5.6 × 10^–6
Specific heat	3000
Conductivity	3
Density, pore fluid	1000
Expansion, pore fluid	69. × 10^–6
Specific heat, pore fluid	4186
Conductivity, pore fluid	0.58
Permeability	0.001
Specific weight of fluid	9800

Loading and boundary conditions:

Pore pressure of 10 units and surface pressure of 2 units is applied on the top surface. The temperature at the top surface is set to 100 units. Normal displacement is constrained on three faces. Elements at the center of the block are removed and added in various steps.

Results and discussion

The models produce results that match the expected values.

Input files

mdlchng_c3d8pt_p.inp

General test of C3D8PT elements.

mdlchng_c3d8rpt_p.inp

General test of C3D8RPT elements.

mdlchng_c3d8rpt_t.inp

General test of C3D8RPT elements.