International Journal of Fracture

, Volume 144, Issue 3, pp 149–158

Modeling of fatigue damage evolution on the basis of the kinetic concept of strength

Authors

    • Materials Research Department, Risø National LaboratoryTechnical University of Denmark, AFM-228
  • Povl Brøndsted
    • Materials Research Department, Risø National LaboratoryTechnical University of Denmark, AFM-228
Orignal Paper

DOI: 10.1007/s10704-007-9086-1

Cite this article as:
Mishnaevsky, L. & Brøndsted, P. Int J Fract (2007) 144: 149. doi:10.1007/s10704-007-9086-1

Abstract

On the basis of the kinetic theory of strength, a new approach to the modeling of material degradation in cyclic loading has been suggested. Assuming that not stress changes, but acting stresses cause the damage growth in materials under fatigue conditions, we applied the kinetic theory of strength to model the material degradation. The damage growth per cycle, the effect of the loading frequency on the lifetime and on the stiffness reduction in composites were determined analytically. It has been shown that the number of cycles to failure increases almost linearly and the damage growth per cycle decreases with increasing the loading frequency.

Keywords

Kinetic theory of strengthFatigueDamageLifetimeFrequency
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Copyright information

© Springer Science+Business Media B.V. 2007