Fracture Analysis of Semi-Circular Bending Test of Asphalt Mixtures Based on Extended Finite Element Method

A two-dimensional (2D) semi-circular bending (SCB) model was constructed with the extended finite element method (XFEM) to investigate the fracture performance of asphalt mixtures. The influence of material properties, which include the tensile strength, fracture energy, and elastic modulus, on the crack development in the I-FIT SCB configuration has been examined through the load–displacement curves. A full factorial of 64 simulation cases varying in material properties was carried out for sensitivity analysis. The simulation results showed that the crack development could be divided into four stages according to the damage evolvement. In addition, it was found that stiffer modulus results in higher peak load and steeper slope of curve. Tensile strength showed a noticeable effect on the peak load, while the fracture energy was highly related with the area under curve after peak load. Linear regression equations have been established between material properties and load–displacement curve parameters.

• Record URL:
  https://doi.org/10.1061/9780784483510.008
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784483510
• Supplemental Notes:
  • © 2021 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Jiao, Liya
  • Harvey, John
  • Wu, Rongzong
  • Jones, David
• Conference:
  • International Airfield and Highway Pavements Conference 2021
  • Date: 2021-6-8 to 2021-6-10
• Publication Date: 2021

Language

• English

Media Info

• Pagination: pp 80 - 91
• Monograph Title: Airfield and Highway Pavements 2021: Pavement Materials and Sustainability

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Cracking of asphalt concrete pavements; Deformation curve; Finite element method; Flexural strength; Fracture properties; Load factor; Modulus of elasticity; Properties of materials; Sensitivity analysis; Simulation; Tensile strength
• Subject Areas: Aviation; Highways; Materials; Pavements;

Filing Info

• Accession Number: 01775827
• Record Type: Publication
• ISBN: 9780784483510
• Files: TRIS, ASCE
• Created Date: Jun 30 2021 5:37PM