Three Dimensional Finite Element Analysis of Top-Down Cracking for Asphalt Pavements

In this paper, structural performance of a flexible pavement is evaluated using the finite element analysis considering the effect of tire pressure, axle load variations of vehicles. The pavement structure is modeled as three-dimensional four-layer system using finite element software of ANSYS. The pavement model is subjected to traffic loadings to simulate truck wheel loads at three different tire inflation pressures. Results from the model are verified using in laboratory test data. Model comparisons with measured laboratory test data are in good agreement. Therefore, finite element method could be used to estimate the potential distress efficiently. Analysis results show that peak maximum shear stress are very high and locates at the same magnitude level of the shear intensity of HMA, while maximum tension stress in direction of X, Y and Z are small. Hence, shear stress is an important factor that could result in top-down cracking in asphalt pavements.

• Record URL:
  https://doi.org/10.1061/41039(345)535
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784410394
• Supplemental Notes:
  • © 2009 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Hu, Chunhua
• Conference:
  • Second International Conference on Transportation Engineering
  • Location: Chengdu , China
  • Date: 2009-7-25 to 2009-7-27
• Publication Date: 2009-7

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Pagination: pp 3248-3253
• Monograph Title: International Conference on Transportation Engineering 2009

Subject/Index Terms

• TRT Terms: Asphalt pavements; Axle load force; Finite element method; Flexible pavements; Pavement cracking; Shear stress; Wheel loads
• Subject Areas: Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01534577
• Record Type: Publication
• ISBN: 9780784410394
• Files: TRIS, ASCE
• Created Date: Nov 12 2013 1:43PM