Journal: International Journal of Fracture

Abbreviation

Int J Fract

Publisher

Springer

Journal Volumes

ISSN

0376-9429
1573-2673

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Publications 1 - 10 of 26
  • Special Issue: IUTAM Symposium on Ductile Failure and Localization
    Item type: Journal Issue
    (2016)
    International Journal of Fracture
  • Multi-scale interaction potentials (F − r) for describing fracture of brittle disordered materials like cement and concrete
    Item type: Journal Article
    van Mier, Jan G.M. (2007)
    International Journal of Fracture
  • Numerical study of geometric constraint and cohesive parameters in steady-state viscoelastic crack growth
    Item type: Journal Article
    Nguyen, T.D.; Govindjee, S. (2006)
    International Journal of Fracture
  • The energy release rate of mode II fractures in layered snow samples
    Item type: Conference Paper
    Sigrist, Christian; Schweizer, Jürg; Schindler, Hans-Jakob; et al. (2006)
    International Journal of Fracture
    Before a dry snow slab avalanche is released, a shear failure along a weak layer or an interface has to take place. This shear failure disconnects the overlaying slab from the weak layer. A better understanding of this fracture mechanical process, which is a key process in slab avalanche release, is essential for more accurate snow slope stability models. The purpose of this work was to design and to test an experimental set-up for a mode II fracture test with layered snow samples and to find a method to evaluate the interfacial fracture toughness or alternatively the energy release rate in mode II. Beam-shaped specimens were cut out of the layered snow cover, so that they consisted of two homogeneous snow layers separated by a well defined interface. In the cold laboratory 27 specimens were tested using a simple cantilever beam test. The test method proved to be applicable in the laboratory, although the handling of layered samples was delicate. An energy release rate for snow in mode II was calculated numerically with a finite element (FE) model and analytically using an approach for a deeply cracked cantilever beam. An analytical bilayer approach was not suitable. The critical energy release rate G c was found to be 0.04 ± 0.02 J m−2. It was primarily a material property of the weak layer and did not depend on the elastic properties of the two adjacent snow layers. The mixed mode interfacial fracture toughness for a shear fracture along a weak layer estimated from the critical energy release rate was substantially lower than the mode I fracture toughness found for snow of similar density.
  • The third Sandia fracture challenge: predictions of ductile fracture in additively manufactured metal
    Item type: Journal Article
    Kramer, Sharlotte L.B.; Jones, Amanda; Mostafa, Ahmed; et al. (2019)
    International Journal of Fracture
  • Extension of fibre bundle models for creep rupture and interface failure
    Item type: Journal Article
    Kun, Ferenc; Hidalgo, Raúl C.; Raischel, Frank; et al. (2006)
    International Journal of Fracture
  • Size and boundary effects on desiccation cracking in hardened cement paste
    Item type: Conference Paper
    Bisschop, Jan (2008)
    International Journal of Fracture
  • Size effect on strength and fracture energy for numerical concrete with realistic aggregate shapes
    Item type: Conference Paper
    Man, Hau-Kit; van Mier, Jan G.M. (2008)
    International Journal of Fracture
  • Physics and scaling of fracture
    Item type: Other Journal Item
    Bouchaud, Elisabeth; Chiaia, Bernadino; Hansen, Alex; et al. (2006)
    International Journal of Fracture
  • On the energy decomposition in variational phase-field models for brittle fracture under multi-axial stress states
    Item type: Journal Article
    Vicentini, Francesco; Zolesi, Camilla; Carrara, Pietro; et al. (2024)
    International Journal of Fracture
    Phase-field models of brittle fracture are typically endowed with a decomposition of the elastic strain energy density in order to realistically describe fracture under multi-axial stress states. In this contri bution, we identify the essential requirements for this decomposition to correctly describe both nucleation and propagation of cracks. Discussing the evolution of the elastic domains in the strain and stress spaces as damage evolves, we highlight the links between the nucleation and propagation conditions and the modula tion of the elastic energy with the phase-field variable. In light of the identified requirements, we review some of the existing energy decompositions, showcasing their merits and limitations, and conclude that none of them is able to fulfil all requirements. As a partial rem edy to this outcome, we propose a new energy decom position, denoted as star-convex model, which involves a minimal modification of the volumetric-deviatoric decomposition. Predictions of the star-convex model are compared with those of the existing models with different numerical tests encompassing both nucleation and propagation.
Publications 1 - 10 of 26