Numerical simulation techniques for HMA rutting under loaded wheel tester

A computational simulation tool for the asphalt pavement analyzer (APA) was developed to predict the rutting depth for different types of hot mix asphalt (HMAs). The computer code APA includes a comprehensive multimechanism, viscoelastoplastic material model, developed originally by Saleeb and his associates, which was incorporated into the ABAQUS FEM code to capture the time-dependent behavior of the asphaltic concrete in three-dimensional boundary value problems. The material model parameters necessary for input in the FEM simulation was also described. The techniques for extracting the material model parameters from APA test results were also developed. The FEM parametric sensitivity study results have yielded the proposed two-dimensional approximate approach. The APA test results for three types of HMA were used to demonstrate the capability of the presented model in capturing the complex phenomena in APA test configuration. The developed computational algorithm will be very useful to derive theoretical “transfer functions” for linking the APA test data and site and material specific field pavement rutting performance.

[1]  Sameh Zaghloul,et al.  PAVEMENT ANALYSIS FOR MOVING AIRCRAFT LOAD , 1997 .

[2]  M S Buchanan,et al.  LOADED WHEEL TESTERS IN THE UNITED STATES: STATE OF THE PRACTICE , 2000 .

[3]  A. Saleeb,et al.  A general hereditary multimechanism-based deformation model with application to the viscoelastoplastic response of titanium alloys , 2001 .

[4]  Andy Collop,et al.  Viscoelastic approach to rutting in flexible pavements , 1995 .

[5]  Peter E. Sebaaly,et al.  Investigation of Tire Contact Stress Distributions on Pavement Response , 2002 .

[6]  J. Wang.  Three-Dimensional Finite Element Analysis of Flexible Pavements , 2001 .

[7]  Matthew W Witczak,et al.  Asphalt Mix Master Curve Construction Using Sigmoidal Fitting Function with Non-Linear Least Squares Optimization , 2003 .

[8]  C. Lakshmana Rao,et al.  Mechanics of air voids reduction of asphalt concrete using mixture theory , 2000 .

[9]  Atef F. Saleeb,et al.  An anisotropic viscoelastoplastic model for composites—sensitivity analysis and parameter estimation , 2003 .

[10]  Atef F. Saleeb,et al.  MECHANISTIC EVALUATION OF THE GEORGIA LOADED WHEEL TESTER FOR SUPERPAVE ASPHALT MIXTURES , 2004 .

[11]  L. Allen Cooley,et al.  EVALUATION OF PERMANENT DEFORMATION OF ASPHALT MIXTURES USING LOADED WHEEL TESTER , 2002 .

[12]  S. W. Park,et al.  A viscoelastic constitutive model for particulate composites with growing damage , 1997 .

[13]  Yang Lu,et al.  Temperature Related Visco-Elastoplastic Properties of Asphalt Mixtures , 2000 .

[14]  H Huang,et al.  Minimum crushed aggregate requirements for asphalt mixtures in Indiana , 1997 .

[15]  Atef F. Saleeb,et al.  Analysis of the anisotropic viscoplastic-damage response of composite laminates - Continuum basis and computational algorithms , 1993 .

[16]  Sam Helwany,et al.  Finite-Element Analyses of Flexible Pavements , 1998 .