Study on fatigue failure characteristics of asphalt mixtures under different test methods

DOI

10.2991/iceesd-18.2018.140How to use a DOI?

Keywords

road engineering; asphalt mixture; accelerated loading test; stiffness decay regularity; damage mechanics

Abstract

In order to truthfully reveal the stiffness decay regularity of asphalt mixture，the nonlinear fatigue damage evolution model of asphalt mixture based on accelerated loading test are established accordingly mixture，first，the accelerated loading test is conducted on the formed standard asphalt mixture specimens by accelerated loading test system，and the moduli of resilience of the asphalt mixture under different loading times are tested by materials testing system，Based on the basic theory of damage mechanics, the decay of modulus is defined as the damage variable, and the stiffness decay equation and the nonlinear fatigue damage evolution model .The results of the nonlinear fatigue damage evolution model takes into account the loading history, which more faithfully reflects the fatigue damage of asphalt mixtures under cyclic loading; the stiffness decay regularity under the condition of accelerated loading test is different from that of the common fatigue loading methods in the third stage during fatigue failure process，the decay rate increases at first and then decreases．

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Gui Hou
AU  - Shuangshuang Wang
PY  - 2018/05
DA  - 2018/05
TI  - Study on fatigue failure characteristics of asphalt mixtures under different test methods
BT  - Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018)
PB  - Atlantis Press
SP  - 756
EP  - 769
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceesd-18.2018.140
DO  - 10.2991/iceesd-18.2018.140
ID  - Hou2018/05
ER  -