Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Articoli Vol. 6, No. 20 (2012)

Crack path dependence on inhomogeneities of material microstructure

Author and affiliation details
  • Roberto Brighenti Corresponding author spagnoli@unipr.it
  • Andrea Carpinteri
  • Andrea Spagnoli
  • Daniela Scorza
DOI
10.3221/IGF-ESIS.20.01
Pages
6-16
Published
Published inVol. 6, No. 20 (2012)Go to the issue

Abstract

Crack trajectories under different loading conditions and material microstructural features play animportant role when the conditions of crack initiation and crack growth under fatigue loading have to beevaluated. Unavoidable inhomogeneities in the material microstructure tend to affect the crack propagationpattern, especially in the short crack regime. Several crack extension criteria have been proposed in the pastdecades to describe crack paths under mixed mode loading conditions. In the present paper, both the Sihcriterion (maximum principal stress criterion) and the R-criterion (minimum extension of the core plastic zone)are adopted in order to predict the crack path at the microscopic scale level by taking into account microstressfluctuations due to material inhomogeneities. Even in the simple case of an elastic behaviour under uniaxialremote stress, microstress field is multiaxial and highly non-uniform. It is herein shown a strong dependence ofthe crack path on the material microstructure in the short crack regime, while the microstructure of the materialdoes not influence the crack trajectory for relatively long cracks.

Article history

  1. ReceivedUntil the next stage: 0 days
  2. AcceptedUntil the next stage: 0 days
  3. Published

How to cite

APA

Brighenti, R., Carpinteri, A., Spagnoli, A., & Scorza, D. (2012). Crack path dependence on inhomogeneities of material microstructure. Fracture and Structural Integrity, 6(20), 6–16. https://doi.org/10.3221/IGF-ESIS.20.01

IEEE

R. Brighenti, A. Carpinteri, A. Spagnoli, and D. Scorza, “Crack path dependence on inhomogeneities of material microstructure,” Fracture and Structural Integrity, vol. 6, no. 20, pp. 6–16, 2012, doi: 10.3221/IGF-ESIS.20.01.

MLA

Brighenti, Roberto, et al. “Crack path dependence on inhomogeneities of material microstructure.” Fracture and Structural Integrity, vol. 6, no. 20, 2012, pp. 6–16. https://doi.org/10.3221/IGF-ESIS.20.01.

Chicago

Brighenti, Roberto, Andrea Carpinteri, Andrea Spagnoli, and Daniela Scorza. 2012. “Crack path dependence on inhomogeneities of material microstructure.” Fracture and Structural Integrity 6 (20): 6–16. https://doi.org/10.3221/IGF-ESIS.20.01.

Harvard

Brighenti, R., Carpinteri, A., Spagnoli, A. and Scorza, D. (2012) ‘Crack path dependence on inhomogeneities of material microstructure’, Fracture and Structural Integrity, 6(20), pp. 6–16. doi: 10.3221/IGF-ESIS.20.01.

Vancouver

Brighenti R, Carpinteri A, Spagnoli A, Scorza D. Crack path dependence on inhomogeneities of material microstructure. Fracture and Structural Integrity. 2012;6(20):6-16. doi:10.3221/IGF-ESIS.20.01

BibTeX

@article{brighenti2012, author = {Brighenti, Roberto and Carpinteri, Andrea and Spagnoli, Andrea and Scorza, Daniela}, title = {Crack path dependence on inhomogeneities of material microstructure}, journal = {Fracture and Structural Integrity}, year = {2012}, volume = {6}, number = {20}, pages = {6--16}, doi = {10.3221/IGF-ESIS.20.01}, url = {https://doi.org/10.3221/IGF-ESIS.20.01}, issn = {1971-8993} }

RIS

TY - JOUR AU - Brighenti, Roberto AU - Carpinteri, Andrea AU - Spagnoli, Andrea AU - Scorza, Daniela TI - Crack path dependence on inhomogeneities of material microstructure JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2012 DA - 2012/03/19 VL - 6 IS - 20 SP - 6 EP - 16 DO - 10.3221/IGF-ESIS.20.01 UR - https://doi.org/10.3221/IGF-ESIS.20.01 SN - 1971-8993 ER -

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