01474740

Component

https://doi.org/10.3141/2373-02

http://scholar.google.com...ttle&publication_year=2013

The fatigue damage response of asphalt concrete is modeled with a proposed damage evolution function in the context of continuum damage healing mechanics. The uniaxial constant strain rate test is used to identify damage density experimentally during this test and to propose a form for the evolution of the damage density variable in the model. In addition, the model is formulated to include the microdamage healing effect. The proposed damage model is incorporated in the pavement analysis with a nonlinear damage approach model that includes Schapery’s viscoelastic model, Perzyna’s viscoplastic model, and the microdamage healing model, which is used to simulate the fatigue damage response of asphalt concrete. The damage model is validated against extensive experimental data, including constant strain rate, cyclic displacement-controlled tests, and cyclic stress-controlled tests over a range of temperatures, strain rates, loading frequencies, and stress–strain levels and amplitudes. Model predictions show that the proposed damage model is capable of predicting the fatigue damage response of asphalt concrete subjected to different loading conditions.

01517321

13-1598

English

pp 11–21

2013

Transportation Research Record: Journal of the Transportation Research Board

9780309287081

Print

Figures (7) ; References (29) ; Tables (1)

Asphalt concrete pavements; Fatigue (Mechanics); Mathematical models; Viscoelasticity; Viscoplasticity

Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways

TRIS, TRB, ATRI

Feb 5 2013 12:24PM

• Approach for Quantifying the Effect of Binder Oxidative Aging on the Viscoelastic Properties of Asphalt Mixtures
• Comparison of Uniaxial and Four-Point Bending Fatigue Tests for Asphalt Mixtures
• Constitutive Modeling of Cyclic Viscoplastic Response of Asphalt Concrete
• Development of Calibration Testing Protocol for Permanent Deformation Model of Asphalt Concrete (With Discussion and Closure)
• Laboratory Hot-Mix Asphalt Cracking Testing: Evaluation of Three Repeated Loading Crack Tests
• Laboratory Validation of Healing-Based Fatigue Endurance Limit for Hot-Mix Asphalt
• Local Practice of Assessing Dynamic Modulus Properties for Washington State Mixtures
• Mechanistic-Based Approach to Evaluate Rutting Susceptibility of Hot-Mix Asphalt Mixtures by Use of Dynamic Triaxial Testing
• Modeling Water Vapor Diffusion in Pavement and Its Influence on Fatigue Crack Growth of Fine Aggregate Mixture
• Modified Paris’s Law to Predict Entire Crack Growth in Asphalt Mixtures
• Nonlinear Viscoelastic Behavior of Asphalt Concrete and Its Implication for Fatigue Modeling
• Permanent Deformation Characterization of Asphalt Mixtures by Using Incremental Repeated Load Testing
• Three-Dimensional Microstructural Modeling of Asphalt Concrete by Use of X-Ray Computed Tomography