Analysis of Interface Stress in Asphalt Pavement Under Dynamic Loading

DOI

10.2991/978-94-6463-726-7_29How to use a DOI?

Keywords

Asphalt pavement; Finite elements; Numerical simulation; Stress; Abaqus

Abstract

Pavement interfaces play a critical role in the structural integrity of flexible pavements, serving as contact areas that bear significant stress due to traffic and environmental conditions. Despite their importance, interface behavior under varying conditions is not fully understood, particularly in terms of shear stress. This study addresses this gap by assessing stress conditions at asphalt layer interfaces in flexible pavements, focusing on the effects of dynamic loading. To accomplish this objective, the pavement structure was modeled as a multilayer system composed of overlapping horizontal layers, with multiple simulations conducted using Abaqus. The applied load was analyzed as either static or dynamic, incorporating vertical, horizontal, or a combination of both loading conditions. Furthermore, the asphalt concrete layers were modeled as either elastic or viscoelastic. Five combinations of road materials elastic modulus, with different ratios of asphalt concrete and foundation layer, were calculated and analyzed. For the distribution of vertical stress and shear stress in the pavement, impacts of temperature and speed were revealed. The findings reveal that shear stress is highest when the asphalt concrete layer’s elastic modulus significantly exceeds that of the foundation, whereas reduced modulus ratios result in lower stresses. For dynamic conditions, vehicle speed significantly influences stress behavior: higher speeds amplify shear stress, while lower speeds increase vertical stress. Additionally, elevated temperatures lead to higher vertical stresses but lower shear stresses, highlighting the critical role of temperature and speed management in mitigating pavement damage during hot weather. These results provide practical insights for optimizing pavement design and preventing interface failure in flexible pavements.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Xiaotian Jiang
AU  - Binlei Wang
PY  - 2025
DA  - 2025/06/13
TI  - Analysis of Interface Stress in Asphalt Pavement Under Dynamic Loading
BT  - Proceedings of the 2024 6th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2024)
PB  - Atlantis Press
SP  - 289
EP  - 299
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-726-7_29
DO  - 10.2991/978-94-6463-726-7_29
ID  - Jiang2025
ER  -