Discrete Description of Crack Kinematics in Regularized Free Discontinuities of Crack Faces

Publikation: Beitrag in Buch/Konferenzbericht/Sammelband/GutachtenBeitrag in Buch/Sammelband/GutachtenBeigetragenBegutachtung

Abstract

The fracture mechanical free discontinuity problem can be associated with a generalized, variational approach of GRIFFITH’s fracture theory. By introducing a regularization for the sharp displacement discontinuity at cracks and crack surfaces, stable computational fracture models are developed, e.g., the phase-field fracture formulation and the eigenfracture approach. The presented work summarizes recent findings regarding unrealistic deformation kinematics at cracks predicted by conventional formulations of both models and introduces the variational framework of Representative Crack Element to overcome these discrepancies. Illustrative examples for crack propagation and post-fracture behavior at small and finite deformations, brittle and cohesive failure as well as for rate-dependent materials frictional crack contact demonstrate the flexibility and the generality of the introduced Representative Crack Element.

Details

OriginalspracheEnglisch
TitelMaterial Modeling and Structural Mechanics
Herausgeber (Verlag)Springer, Cham
Seiten271-310
Seitenumfang40
ISBN (elektronisch)978-3-030-97675-0
PublikationsstatusVeröffentlicht - 30 März 2022
Peer-Review-StatusJa

Publikationsreihe

ReiheAdvanced structured materials
Band161
ISSN1869-8433

Externe IDs

Scopus 85127635142
unpaywall 10.1007/978-3-030-97675-0_11
Mendeley 74566514-1a9d-3004-9144-10465e74b084
ORCID /0000-0002-6115-6493/work/142250894

Schlagworte

ASJC Scopus Sachgebiete

Schlagwörter

  • Representative crack element, Free discontinuity, Phase-field fracture, Eigenfracture