Modeling the Initiation and Propagation of Cracks in a Fibrous Composite Under Loading Across Fibers

A computational model describing crack formation in a fibrous composite is developed. It is assumed that, upon repeated loading, crack formation in the composite leads to its fracture. Determination of the unknown parameters characterizing an initial crack is reduced to solving a singular integral equation. A closed system of nonlinear algebraic equations whose solution allows one to predict crack formation in the composite depending on the geometric and mechanical characteristics of the binder and fiber is constructed. A crack initiation criterion for the composite is formulated.

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Correspondence to V. M. Mirsalimov.

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Translated from Mekhanika Kompozitnykh Materialov, Vol. 56, No. 6, pp. 1047-1066, November-December, 2020.

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Mirsalimov, V.M. Modeling the Initiation and Propagation of Cracks in a Fibrous Composite Under Loading Across Fibers. Mech Compos Mater 56, 721–734 (2021). https://doi.org/10.1007/s11029-021-09918-5

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Keywords

  • binder
  • fibers
  • composite
  • prefailure zone
  • crack initiation
  • crack growth