Structural-phenomenological model of fatigue damage accumulation and failure of inhomogeneous solids

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Abstract

Based on the approach to mathematical modeling of the fatigue failure processes of structurally inhomogeneous media proposed by Yu. V. Sokolkin, within the framework of the damage concept of Yu. N. Rabotnov and L. M. Kachanov, a two-level structural-phenomenological model of fatigue damage accumulation and failure of an inhomogeneous body is developed in this paper. The transition from the simplest fatigue criteria, fatigue models, and models of damage accumulation to the proposed model that takes into account the change in deformation and strength characteristics of structural elements as the number of loading cycles increases is considered in detail. The statement of the boundary value problem of deformation and fracture of a structurally inhomogeneous body is presented, taking into account the fatigue damage accumulation. An algorithm for solving the stated boundary value problem is developed. The prospects of using the developed model for predicting the durability of structures, their mechanical behavior at the macrolevel after preliminary cyclic loading, as well as considering the kinetics of damage accumulation and fracture processes are noted.

Keywords

inhomogeneous solidcompositefatiguedamage accumulationmulti-level models

Bibliography

  1. 1.Collins J.A. Failure of Materials in Mechanical Design. New York, John Wiley & Sons, 1981, 628 p. Scholar
  2. 2.Makhutov N.A. Konstruktsionnaia prochnost', resurs i tekhnogennaia bezopasnost'. Chast' 1: Kriterii prochnosti i resursa [Structural strength, service life and technological safety. Part 1: Strength and service life criteria]. Novosibirsk, Nauka, 2005, 494 p. Scholar
  3. 3.Shanyavskiy A.A. Modelirovanie ustalostnykh razrushenii metallov: sinergetika v aviatsii [Modeling of metal fatigue failures: synergetics in aviation]. Ufa, Monografiiа, 2007, 498 p. Scholar
  4. 4.Salifu S., Olubambi P.A. A Review of Fatigue Failure and Life Estimation Models: From Classical Methods to Innovative Approaches. Science, Engineering and Technology, 2024, Vol. 4 (2), pp. 123–151. doi: 10.54327/set2024/v4.i2.140 Scholar
  5. 5.Bourago N.G., Zhuravlev A.B., Nikitin I.S. Models of multiaxial fatigue fracture and service life estimation of structural elements. Mechanics of Solids, 2011, Vol. 46, pp. 828–838. doi: 10.3103/S0025654411060033 Scholar
  6. 6.Ibrahim A.U., Woldemichael D.E. Review of the Techniques for Life Prediction and Cumulative Damage of Multiaxial Fatigue Loading. International Journal of Engineering Trends and Technology, 2024, Vol. 72 (2), pp. 203–221. doi: 10.14445/22315381/IJETT-V7212P122 Scholar
  7. 7.Li P., Li W., Li B., Yang S., Shen Y., Wang Q., Zhou K. A review on phase field models for fracture and fatigue. Engineering Fracture Mechanics, 2023, Vol. 289, No. 109419. doi: 10.1016/j.engfracmech.2023.109419 Scholar
  8. 8.Naimark O.B., Oborin V.A., Bannikov M.V., Bayandin Y.V. Self-Similar Regularities of Failure Staging and Power Laws of Fatigue-Crack Growth. PNRPU Mechanics Bulletin, 2024, No. 5, pp. 69–81. doi: 10.15593/pmeh.2024.5.06 Scholar
  9. 9.Shlyannikov V.N. Simulations for Problems of Estimating Structural Residual Life. PNRPU Mechanics Bulletin, 2024, No. 5, pp. 132–149. doi: 10.15593/pmeh.2024.5.11 Scholar
  10. 10.Rabotnov Y.N. O mekhanizme dilet'nogo razrusheniia [On the mechanism of long-term fracture]. Voprosy prochnosti materialov i konstruktsii [Questions of the Strength of Materials and Structures]. Moscow, Izdatel'stvo AN SSSR, 1959, pp. 5–7. Scholar
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Article information

Published
8 December 2025
Issue date
8 December 2025
Issue
No. 4 (2025)
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