TY - JOUR
T1 - Predicting healing in viscoelastic bitumen using alien strain method
AU - Li, Linglin
AU - Gao, Yangming
AU - Zhang, Yuqing
PY - 2021/4/1
Y1 - 2021/4/1
N2 - This study aims to predict healing of bitumen with alien strain method. Strain-controlled fatigue load in healing test was decomposed into three alien loads with different start times and rotational directions. Results show that healing prediction can be obtained by superimposing crack lengths induced by the first and second alien strain loads. The reliability of healing prediction is validated by healing tests with rest durations of 1 min, 5 min, 10 min, and 20 min of four different types of bitumen. This healing prediction provides an approach to remove erroneous data measured in healing test, which yields a more accurate characterisation of healing performance.
AB - This study aims to predict healing of bitumen with alien strain method. Strain-controlled fatigue load in healing test was decomposed into three alien loads with different start times and rotational directions. Results show that healing prediction can be obtained by superimposing crack lengths induced by the first and second alien strain loads. The reliability of healing prediction is validated by healing tests with rest durations of 1 min, 5 min, 10 min, and 20 min of four different types of bitumen. This healing prediction provides an approach to remove erroneous data measured in healing test, which yields a more accurate characterisation of healing performance.
KW - Alien strain method
KW - Bitumen
KW - Fatigue cracking
KW - Healing
UR - https://www.sciencedirect.com/science/article/pii/S0142112320306344?via%3Dihub
UR - http://www.scopus.com/inward/record.url?scp=85098685269&partnerID=8YFLogxK
U2 - 10.1016/j.ijfatigue.2020.106102
DO - 10.1016/j.ijfatigue.2020.106102
M3 - Article
SN - 0142-1123
VL - 145
JO - International Journal of Fatigue
JF - International Journal of Fatigue
M1 - 106102
ER -