Continuous-Discontinuous Model for Ductile Fracture

• Type: Article in International Conference Proceedings Book
• Date: 2010

Authors

seabra, mrr (Author) FEUP; de sa, jmac (Author) FEUP

Conference proceedings International

Title: NUMIFORM 2010, VOLS 1 AND 2: DEDICATED TO PROFESSOR O. C. ZIENKIEWICZ (1921-2009)

Pages: 245-252

10th International Conference on Numerical Methods in Industrial Forming Processes (NUMIFORM 2010)

Pohang, SOUTH KOREA, JUN 13-17, 2010

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Other information

Authenticus ID: P-003-C64

DOI: 10.1063/1.3457558

Abstract (EN): In this contribution, a continuum-dicontinuum model for ductile failure is presented. The degradation of material properties trough deformation is described by Continuum Damage Mechanics in a non-local integral formulation to avoid mesh dependence. In the final stage of failure, the damaged zone is replaced by a cohesive macro crack and subsequent traction-free macro crack for a more realistic representation of the phenomenon. The inclusion of the discontinuity surfaces is performed by the XFEM and Level Set Method and avoids the spurious damage growth typical of this class of models.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8