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DCP3

Constant Strain Triangle With Crack Phase

  • Number of Nodes: 3
  • Number of DoFs: 3 (Translation, Translation, Damage)
  • DoF Label: U1, U2, DAMAGE
  • Integration Scheme: Single Point Centre
  • Zero Mass Entries On Damage DoFs

encoding

References

There are a lot of papers on the phase-field model. A staggered scheme with maximum strain energy is adopted as an illustration of implementation.

Syntax

Text Only
1
2
3
4
5
6
7
element DCP3 (1) (2...4) (5) (6) (7) [8]
# (1) int, unique element tag
# (2...4) int, node i, j, k
# (5) int, material tag
# (6) double, characteristic length
# (7) double, energy release rate
# [8] double, element thickness, default: 1.0

Remarks

  • The third DoF is the damage variable. Boundary conditions can be assigned.
  • The characteristic length (7) can be set to zero to automatically determine the value based on geometry.

Recording

This model supports the following additional history variables to be recorded.

variable label physical meaning
DAMAGE damage variable