Application of generalized J-integral to crack propagation modeling of asphalt concrete under repeated loading

Haidong Kuai, Hyun Jong Lee, Goangseup Zi, Sungho Mun

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

An energy-based crack-growth model was developed in this study to simulate the propagation of top-down cracking in asphalt pavements. A viscoelastic fracture mechanics approach, the generalized J-integral, was employed to model the crack growth of asphalt concrete. Laboratory fatigue crack propagation tests for three asphalt mixtures were performed at various load levels, frequencies, and temperatures. Disk-shaped specimens with a proper loading fixture and crack growth monitoring system were selected for the tests. It was observed from the tests that the crack-propagation model based on the generalized J-integral was independent of load levels and frequencies, while the traditional Paris law model based on stress intensity factor was dependent on loading frequencies. However, both models were unable to deal with the temperature dependence of the mixtures. The fatigue crack propagation model proposed in this study had a good agreement between experimental and predicted crack-growth lives, an indicator that the energy-based J-integral could be a better parameter to describe fatigue crack propagation of viscoelastic materials such as asphalt mixtures.

Original languageEnglish
Pages (from-to)72-81
Number of pages10
JournalTransportation Research Record
Issue number2127
DOIs
Publication statusPublished - 2009 Dec 1

Fingerprint

Asphalt concrete
Crack propagation
Fatigue crack propagation
Asphalt mixtures
Asphalt pavements
Fracture mechanics
Stress intensity factors
Temperature
Monitoring

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanical Engineering

Cite this

Application of generalized J-integral to crack propagation modeling of asphalt concrete under repeated loading. / Kuai, Haidong; Lee, Hyun Jong; Zi, Goangseup; Mun, Sungho.

In: Transportation Research Record, No. 2127, 01.12.2009, p. 72-81.

Research output: Contribution to journalArticle

@article{523340121a7e44f4aeab9de43dfba628,
title = "Application of generalized J-integral to crack propagation modeling of asphalt concrete under repeated loading",
abstract = "An energy-based crack-growth model was developed in this study to simulate the propagation of top-down cracking in asphalt pavements. A viscoelastic fracture mechanics approach, the generalized J-integral, was employed to model the crack growth of asphalt concrete. Laboratory fatigue crack propagation tests for three asphalt mixtures were performed at various load levels, frequencies, and temperatures. Disk-shaped specimens with a proper loading fixture and crack growth monitoring system were selected for the tests. It was observed from the tests that the crack-propagation model based on the generalized J-integral was independent of load levels and frequencies, while the traditional Paris law model based on stress intensity factor was dependent on loading frequencies. However, both models were unable to deal with the temperature dependence of the mixtures. The fatigue crack propagation model proposed in this study had a good agreement between experimental and predicted crack-growth lives, an indicator that the energy-based J-integral could be a better parameter to describe fatigue crack propagation of viscoelastic materials such as asphalt mixtures.",
author = "Haidong Kuai and Lee, {Hyun Jong} and Goangseup Zi and Sungho Mun",
year = "2009",
month = "12",
day = "1",
doi = "10.3141/2127-09",
language = "English",
pages = "72--81",
journal = "Transportation Research Record",
issn = "0361-1981",
publisher = "US National Research Council",
number = "2127",

}

TY - JOUR

T1 - Application of generalized J-integral to crack propagation modeling of asphalt concrete under repeated loading

AU - Kuai, Haidong

AU - Lee, Hyun Jong

AU - Zi, Goangseup

AU - Mun, Sungho

PY - 2009/12/1

Y1 - 2009/12/1

N2 - An energy-based crack-growth model was developed in this study to simulate the propagation of top-down cracking in asphalt pavements. A viscoelastic fracture mechanics approach, the generalized J-integral, was employed to model the crack growth of asphalt concrete. Laboratory fatigue crack propagation tests for three asphalt mixtures were performed at various load levels, frequencies, and temperatures. Disk-shaped specimens with a proper loading fixture and crack growth monitoring system were selected for the tests. It was observed from the tests that the crack-propagation model based on the generalized J-integral was independent of load levels and frequencies, while the traditional Paris law model based on stress intensity factor was dependent on loading frequencies. However, both models were unable to deal with the temperature dependence of the mixtures. The fatigue crack propagation model proposed in this study had a good agreement between experimental and predicted crack-growth lives, an indicator that the energy-based J-integral could be a better parameter to describe fatigue crack propagation of viscoelastic materials such as asphalt mixtures.

AB - An energy-based crack-growth model was developed in this study to simulate the propagation of top-down cracking in asphalt pavements. A viscoelastic fracture mechanics approach, the generalized J-integral, was employed to model the crack growth of asphalt concrete. Laboratory fatigue crack propagation tests for three asphalt mixtures were performed at various load levels, frequencies, and temperatures. Disk-shaped specimens with a proper loading fixture and crack growth monitoring system were selected for the tests. It was observed from the tests that the crack-propagation model based on the generalized J-integral was independent of load levels and frequencies, while the traditional Paris law model based on stress intensity factor was dependent on loading frequencies. However, both models were unable to deal with the temperature dependence of the mixtures. The fatigue crack propagation model proposed in this study had a good agreement between experimental and predicted crack-growth lives, an indicator that the energy-based J-integral could be a better parameter to describe fatigue crack propagation of viscoelastic materials such as asphalt mixtures.

UR - http://www.scopus.com/inward/record.url?scp=76149094545&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=76149094545&partnerID=8YFLogxK

U2 - 10.3141/2127-09

DO - 10.3141/2127-09

M3 - Article

SP - 72

EP - 81

JO - Transportation Research Record

JF - Transportation Research Record

SN - 0361-1981

IS - 2127

ER -