Journal Published Online: 15 October 2014
Volume 44, Issue 1

A New Fatigue Failure Criterion Based on Crack Width of Asphalt Concrete Under Indirect Tensile Mode of Loading



In general, the fatigue life of asphalt concrete, representing its resistance against fatigue cracking, is determined based on stiffness or deformation, which is not directly related to crack development. This paper proposes a new fatigue failure criterion considering crack development in indirect tension (IDT) fatigue tests under the stress-controlled mode of loading. The crack length and width of IDT specimens were monitored periodically using two digital cameras mounted on each face of the IDT specimens. Fatigue failure was defined as the number of loading cycles corresponding to the beginning of rapid crack opening. A simple approach as for practical applications was proposed to estimate the crack width from the horizontal deformation of an IDT specimen. Finally, the validity of the new fatigue criterion was evaluated relative to an existing fatigue failure criterion.

Author Information

Nguyen, Manh
Dept. of Civil Engineering, Ho Chi Minh City Univ. of Technology, Ho Chi Minh City, VN Dept. of Civil & Environmental Engineering, Sejong Univ., Seoul, KR
Lee, Hyun
Dept. of Civil & Environmental Engineering, Sejong Univ., Gwangjin-gu, Seoul, KR
Baek, Jongeun
Highway Research Division, Korea Institute of Construction Technology, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do, KR
Moon, Joon-shik
School of Architecture and Civil Engineering, Kyungpook National Univ., Buk-gu, Daegu, KR
Pages: 12
Price: $25.00
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Stock #: JTE20130029
ISSN: 0090-3973
DOI: 10.1520/JTE20130029