Phase field and gradient enhanced damage models for quasi-brittle failure: A numerical comparative study

•Phase-field regularized CZM and GED models for cohesive fracture are compared.•PF-CZM converges to a discrete CZM, is mesh and length scale independent.•GED is mesh independent but length scale dependent. It suffers from damage widening.•Stress based GED removed drawbacks of GED but is not complete...

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Bibliographic Details
Published in:	Engineering fracture mechanics Vol. 207; pp. 48 - 67
Main Authors:	Mandal, Tushar K., Nguyen, Vinh Phu, Heidarpour, Amin
Format:	Journal Article
Language:	English
Published:	New York Elsevier Ltd 15-02-2019 Elsevier BV
Subjects:	Brittle materials Comparative studies Computer simulation Concrete Continuum damage mechanics Crack initiation Crack propagation Damage assessment Finite element method Fracture mechanics Gradient enhanced damage model Mathematical models Phase-field theory Quasi-brittle fracture Phase-field theory Quasi-brittle fracture Concrete Gradient enhanced damage model
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