Product: Abaqus/CAE
Benefits: You can now specify surface-based cohesive contact and damage initiation, evolution, and stabilization as components of a contact interaction property in Abaqus/CAE. You can also specify the initial bonding conditions in an interaction definition in Abaqus/CAE for a surface-to-surface Abaqus/Standard interaction. These enhancements provide interactive support for many contact-based workflows.
Description: Abaqus/CAE provides new interaction properties and interaction definitions to support cohesive contact. The Damage options for contact properties enable you to define settings for damage initiation and, optionally, damage evolution and stabilization:
The damage initiation options enable you to specify any one of four damage criteria: maximum stress, maximum separation, quadratic stress, or quadratic separation.
The damage evolution options enable you to specify damage evolution as a function of total displacement or fracture energy; you can specify linear, exponential, or tabular softening; and you can specify the mixed mode fracture behavior.
The damage stabilization options enable you to specify a viscosity coefficient that defines viscous regularization for surface-based cohesive behavior.
The Cohesive Behavior options enable you to select the slave nodes that should be eligible during contact, define the traction-separation behavior, and specify whether Abaqus/CAE allows cohesive behavior during repeated post-failure contact. Figure 11–2 shows the new Cohesive Behavior options in the Edit Contact Property dialog box.
The new Bonding tabbed page in the interaction editor enables you to limit bonding to the slave nodes in a specified node set when you define a surface-to-surface contact interaction for an Abaqus/Standard analysis.
Interaction module: InteractionProperty
