Publication Date:
2019-07-13
Description:
The present work summarizes an approach to model mixed-mode 3D fatigue crack growth using the Virtual Crack Closure Technique (VCCT) without requiring re-meshing. It is demonstrated that the proposed approach can be used to simulate crack shapes that do not conform to the underlying mesh. The proposed approach relies solely on Paris Law characterization data to model delamination growth. Growth is determined as a post-processing step at the end of each increment, and hence no convergence issues associated with the progressive nodal release are encountered. This approach can be readily applied using standard solid element formulations and is implemented via an interface user element in Abaqus/Standard.
Keywords:
Computer Programming and Software
Type:
NF1676L-27504
,
AIAA SciTech; Jan 08, 2018 - Jan 12, 2018; Kissimmee, FL; United States
Format:
application/pdf
