4. B modeling

Validation of joint \(\mathrm{3D}\) with the JOINT_MECA_RUPT law

4.1. Characteristics of modeling

3D modeling for the elastic element.

3D modeling_ JOINT for the joint element

4.2. Characteristics of the mesh

Number of knots: 12

The elastic element is a HEXA8.

The joint element is a degenerate HEXA8 (knots combined).

4.3. Tested sizes and results

Modes \(I\) and \(\mathrm{II}\)

Identical to modeling A.

Fashion \(\mathrm{III}\)

The joint is opened in \(I\) mode until partial damage occurs, then it is stressed in \(\mathrm{III}\) mode. Tangential stiffness slopes are tested at two values of normal apertures.