TY - JOUR
T1 - Abaqus implementation of phase-field model for brittle fracture
AU - Msekh, Mohammed A.
AU - Sargado, Juan Michael
AU - Jamshidian, Mostafa
AU - Areias, Pedro Miguel
AU - Rabczuk, Timon
N1 - Funding Information:
The first author like to acknowledge the Iraqi ministry of higher education and DAAD for the Grant 331 4 30 042 , 659 4 00 010 . The second author would like to acknowledge the partial support of the Framework Programme 7 Initial Training Network Funding under Grant No. 289361 “Integrating Numerical Simulation and Geometric Design Technology”.
Publisher Copyright:
© 2014 Elsevier B.V.
PY - 2015/1
Y1 - 2015/1
N2 - A phase-field model for brittle fracture is implemented in the commercial finite element software Abaqus by means of UEL and UMAT subroutines. The phase-field method considerably reduces the implementation complexity for fracture problems as it removes the need for numerical tracking of discontinuities in the displacement field that are characteristic of discrete crack methods. This is accomplished by replacing the sharp discontinuities with a scalar damage phase-field representing the diffuse crack topology wherein the amount of diffusion is controlled by a regularization parameter. The nonlinear coupled system consisting of the linear momentum equation and a diffusion-type equation governing the phase-field evolution is solved simultaneously via a Newton-Raphson approach. The implemented crack propagation model does not require predefined paths for crack growth or user-defined surfaces to simulate crack debonding. Post-processing of simulation results is performed via an additional subroutine implemented in the visualization module.
AB - A phase-field model for brittle fracture is implemented in the commercial finite element software Abaqus by means of UEL and UMAT subroutines. The phase-field method considerably reduces the implementation complexity for fracture problems as it removes the need for numerical tracking of discontinuities in the displacement field that are characteristic of discrete crack methods. This is accomplished by replacing the sharp discontinuities with a scalar damage phase-field representing the diffuse crack topology wherein the amount of diffusion is controlled by a regularization parameter. The nonlinear coupled system consisting of the linear momentum equation and a diffusion-type equation governing the phase-field evolution is solved simultaneously via a Newton-Raphson approach. The implemented crack propagation model does not require predefined paths for crack growth or user-defined surfaces to simulate crack debonding. Post-processing of simulation results is performed via an additional subroutine implemented in the visualization module.
KW - Abaqus user subroutines
KW - Brittle fracture
KW - Finite element method
KW - Phase-field model
UR - http://www.scopus.com/inward/record.url?scp=84908702198&partnerID=8YFLogxK
U2 - 10.1016/j.commatsci.2014.05.071
DO - 10.1016/j.commatsci.2014.05.071
M3 - Article
AN - SCOPUS:84908702198
SN - 0927-0256
VL - 96
SP - 472
EP - 484
JO - Computational Materials Science
JF - Computational Materials Science
IS - PB
ER -