A Kinetics-Based Model of Fatigue Crack Growth Rate in Bituminous Material

Hui Li, Xue Luo, Yuqing Zhang

Research output: Contribution to journalArticlepeer-review

Abstract

This study aims to propose a kinetics-based model of fatigue crack growth rate coupling with temperature, strain level and damage degree for bituminous materials. The fatigue crack length is calculated by an energy-based mechanistic (EBM) approach, and kinetic parameters characterizing the fatigue crack growth rate are determined based on an Arrhenius equation. Results show that the logarithm of the fatigue crack growth rate is linear to the inverse of absolute temperature, and cracking activation energy is independent of strain level and damage degree. Besides, the proposed kinetics-based model can predict fatigue crack growth rate at arbitrary temperature, strain level and damage degree of bituminous materials.

Original languageEnglish
Article number106185
JournalInternational Journal of Fatigue
Volume148
Early online date19 Feb 2021
DOIs
Publication statusE-pub ahead of print - 19 Feb 2021

Bibliographical note

© 2021, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

  • Arrhenius equation
  • Bituminous materials
  • Cracking activation energy
  • Energy-based mechanistic (EBM) approach
  • Fatigue crack growth rate

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