A simple and robust Abaqus implementation of the phase field fracture method
| Autor: | Emilio Martínez-Pañeda, C. Betegón, Yousef Navidtehrani |
|---|---|
| Přispěvatelé: | Royal Commission for the Exhibition of 1851, Martínez-Pañeda, Emilio [0000-0002-1562-097X], Apollo - University of Cambridge Repository |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
FOS: Computer and information sciences
Field (physics) Computer science Phase (waves) Mechanical engineering FOS: Physical sciences 02 engineering and technology Applied Physics (physics.app-ph) Abaqus 01 natural sciences Computational Engineering Finance and Science (cs.CE) 0203 mechanical engineering Deflection (engineering) Robustness (computer science) Convergence (routing) Boundary value problem 0101 mathematics Computer Science - Computational Engineering Finance and Science Condensed Matter - Materials Science cs.CE Finite element analysis Materials Science (cond-mat.mtrl-sci) General Medicine Physics - Applied Physics Engineering (General). Civil engineering (General) Finite element method cond-mat.mtrl-sci 010101 applied mathematics Fracture 020303 mechanical engineering & transports User subroutines Fracture (geology) Phase field fracture TA1-2040 physics.app-ph |
| Zdroj: | Applications in Engineering Science, Vol 6, Iss, Pp 100050-(2021) |
| Popis: | The phase field fracture method is attracting significant interest. Phase field approaches have enabled predicting - on arbitrary geometries and dimensions - complex fracture phenomena such as crack branching, coalescence, deflection and nucleation. In this work, we present a simple and robust implementation of the phase field fracture method in the commercial finite element package Abaqus. The implementation exploits the analogy between the phase field evolution law and the heat transfer equation, enabling the use of Abaqus’ in-built features and circumventing the need for defining user elements. The framework is general, and is shown to accommodate different solution schemes (staggered and monolithic), as well as various constitutive choices for preventing damage under compression. The robustness and applicability of the numerical framework presented is demonstrated by addressing several 2D and 3D boundary value problems of particular interest. Focus is on the solution of paradigmatic case studies that are known to be particularly demanding from a convergence perspective. The results reveal that our phase field fracture implementation can be readily combined with other advanced computational features, such as contact, and deliver robust and precise solutions. The code developed can be downloaded from www.empaneda.com/codes . |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|