Damage evolution and element removal for fiber-reinforced composites

The damage evolution capability for fiber-reinforced materials in Abaqus:

  • assumes that damage is characterized by progressive degradation of material stiffness, leading to material failure;

  • requires linearly elastic behavior of the undamaged material (see Linear elastic behavior);

  • takes into account four different failure modes: fiber tension, fiber compression, matrix tension, and matrix compression;

  • uses four damage variables to describe damage for each failure mode;

  • must be used in combination with Hashin's damage initiation criteria (Damage initiation for fiber-reinforced composites);

  • is based on energy dissipation during the damage process;

  • offers options for what occurs upon failure, including the removal of elements from the mesh; and

  • can be used in conjunction with a viscous regularization of the constitutive equations to improve the convergence rate in the softening regime.

The following topics are discussed:

Related Topics
About progressive damage and failure
Damage initiation for fiber-reinforced composites
In Other Guides
Damage evolution