Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Miscellanea Vol. 9, No. 34 (2015)

Effect of fibre arrangement on the multiaxial fatigue of fibrous composites: a micromechanical computational model

Author and affiliation details
  • Roberto Brighenti Corresponding author brigh@unipr.it
  • Andrea Carpinteri
  • Daniela Scorza
DOI
10.3221/IGF-ESIS.34.05
Published
Published inVol. 9, No. 34 (2015)Go to the issue

Abstract

Structural components made of fibre-reinforced materials are frequently used in engineering applications. Fibre-reinforced composites are multiphase materials, and complex mechanical phenomena take place at limit conditions but also during normal service situations, especially under fatigue loading, causing a progressive deterioration and damage. Under repeated loading, the degradation mainly occurs in the matrix material and at the fibre-matrix interface, and such a degradation has to be quantified for design structural assessment purposes. To this end, damage mechanics and fracture mechanics theories can be suitably applied to examine such a problem. Damage concepts can be applied to the matrix mechanical characteristics and, by adopting a 3-D mixed mode fracture description of the fibre-matrix detachment, fatigue fracture mechanics concepts can be used to determine the progressive fibre debonding responsible for the loss of load bearing capacity of the reinforcing phase.

In the present paper, a micromechanical model is used to evaluate the unixial or multiaxial fatigue behaviour of
structures with equi-oriented or randomly distributed fibres. The spatial fibre arrangement is taken into account through a statistical description of their orientation angles for which a Gaussian-like distribution is assumed, whereas the mechanical effect of the fibres on the composite is accounted for by a homogenization approach aimed at obtaining the macroscopic elastic constants of the material. The composite material behaves as an isotropic one for randomly distributed fibres, while it is transversally isotropic for unidirectional fibres. The fibre arrangement in the structural component influences the fatigue life with respect to the biaxiality ratio for multiaxial constant amplitude fatigue loading. One representative parametric example is discussed. 

Keywords

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., & Scorza, D. (2015). Effect of fibre arrangement on the multiaxial fatigue of fibrous composites: a micromechanical computational model. Fracture and Structural Integrity, 9(34). https://doi.org/10.3221/IGF-ESIS.34.05

IEEE

R. Brighenti, A. Carpinteri, and D. Scorza, “Effect of fibre arrangement on the multiaxial fatigue of fibrous composites: a micromechanical computational model,” Fracture and Structural Integrity, vol. 9, no. 34, 2015, doi: 10.3221/IGF-ESIS.34.05.

MLA

Brighenti, Roberto, et al. “Effect of fibre arrangement on the multiaxial fatigue of fibrous composites: a micromechanical computational model.” Fracture and Structural Integrity, vol. 9, no. 34, 2015. https://doi.org/10.3221/IGF-ESIS.34.05.

Chicago

Brighenti, Roberto, Andrea Carpinteri, and Daniela Scorza. 2015. “Effect of fibre arrangement on the multiaxial fatigue of fibrous composites: a micromechanical computational model.” Fracture and Structural Integrity 9 (34). https://doi.org/10.3221/IGF-ESIS.34.05.

Harvard

Brighenti, R., Carpinteri, A. and Scorza, D. (2015) ‘Effect of fibre arrangement on the multiaxial fatigue of fibrous composites: a micromechanical computational model’, Fracture and Structural Integrity, 9(34). doi: 10.3221/IGF-ESIS.34.05.

Vancouver

Brighenti R, Carpinteri A, Scorza D. Effect of fibre arrangement on the multiaxial fatigue of fibrous composites: a micromechanical computational model. Fracture and Structural Integrity. 2015;9(34). doi:10.3221/IGF-ESIS.34.05

BibTeX

@article{brighenti2015, author = {Brighenti, Roberto and Carpinteri, Andrea and Scorza, Daniela}, title = {Effect of fibre arrangement on the multiaxial fatigue of fibrous composites: a micromechanical computational model}, journal = {Fracture and Structural Integrity}, year = {2015}, volume = {9}, number = {34}, doi = {10.3221/IGF-ESIS.34.05}, url = {https://doi.org/10.3221/IGF-ESIS.34.05}, issn = {1971-8993} }

RIS

TY - JOUR AU - Brighenti, Roberto AU - Carpinteri, Andrea AU - Scorza, Daniela TI - Effect of fibre arrangement on the multiaxial fatigue of fibrous composites: a micromechanical computational model JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2015 DA - 2015/09/28 VL - 9 IS - 34 DO - 10.3221/IGF-ESIS.34.05 UR - https://doi.org/10.3221/IGF-ESIS.34.05 SN - 1971-8993 ER -

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