DEVELOPMENT OF DYNAMIC FATIGUE FAILURE CRITERION

When a truck wheel moves on the road, stress pulses develop within the pavement layers. These pulses are primarily functions of load magnitude, tire pressure, and vehicle speed. In this study, dynamic analysis is used to predict stresses and deflections that develop when a moving wheel load is applied. The method considers the inertial forces and assumes pulsating loads that accurately simulate actual wheel loading. The method is applied on AASHO road test sections to predict their theoretical response. The change of stresses and deflections at varous loading times and at different speeds is computed and verified versus actual field data. Very close agreement was found between field deflections and theoretical predictions. The evaluated pavement response is used to develop a fatigue failure criterion for a speed of 30 mph, which is the mean speed at the AASHO road test. The use of accurate prediction models and valid failure functions may lead to better methods of design and rehabilitations of pavements.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/8674831
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Sebaaly, P E
  • Mamlouk, M S
• Publication Date: 1988-7

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 450-464
• Serial:
  • Journal of Transportation Engineering
  • Volume: 114
  • Issue Number: 4
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-947X
  • Serial URL: https://ascelibrary.org/journal/jtepbs

Subject/Index Terms

• TRT Terms: Axle load force; Deflection; Dynamic loads; Dynamic tests; Failure; Pavements; Stresses; Trucks; Wheel loads
• Uncontrolled Terms: Dynamic analysis; Failure criterion
• Old TRIS Terms: Pavement deflection; Truck pavement damage
• Subject Areas: Design; Highways; Motor Carriers; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 00469535
• Record Type: Publication
• Source Agency: American Society of Civil Engineers
• Report/Paper Numbers: ASCE Paper 22573
• Files: TRIS, ATRI
• Created Date: Jul 31 1988 12:00AM