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A platform for research: civil engineering, architecture and urbanism
Probabilistic Viscoelastic Continuum Damage Approach for Fatigue Life Prediction of Asphalt Mixtures: Challenges and Opportunities
Fatigue cracking has a significant effect on the flexible pavement’s performance and service life. Previous studies have utilized several testing techniques to explore and investigate different fatigue life prediction models and approaches. Among these approaches is the viscoelastic continuum damage (VECD) approach, which is mainly used for stress and strain-controlled fatigue tests. However, several studies found that there are significant variabilities in fatigue testing data and VECD results. Recently, few studies showed promising results for predicting fatigue life utilizing the VECD approach probabilistically. However, the proposed probabilistic VECD (P-VECD) approach has some limitations, assumed arbitrary distribution functions for the random variables of the fatigue life model, and added complexity to the VECD analysis by incorporating a probabilistic analysis procedure. This study objective is to identify the main challenges of implementing the P-VECD approach and discuss the opportunities to improve it and make it more implementable by pavement engineers.
Probabilistic Viscoelastic Continuum Damage Approach for Fatigue Life Prediction of Asphalt Mixtures: Challenges and Opportunities
Fatigue cracking has a significant effect on the flexible pavement’s performance and service life. Previous studies have utilized several testing techniques to explore and investigate different fatigue life prediction models and approaches. Among these approaches is the viscoelastic continuum damage (VECD) approach, which is mainly used for stress and strain-controlled fatigue tests. However, several studies found that there are significant variabilities in fatigue testing data and VECD results. Recently, few studies showed promising results for predicting fatigue life utilizing the VECD approach probabilistically. However, the proposed probabilistic VECD (P-VECD) approach has some limitations, assumed arbitrary distribution functions for the random variables of the fatigue life model, and added complexity to the VECD analysis by incorporating a probabilistic analysis procedure. This study objective is to identify the main challenges of implementing the P-VECD approach and discuss the opportunities to improve it and make it more implementable by pavement engineers.
Probabilistic Viscoelastic Continuum Damage Approach for Fatigue Life Prediction of Asphalt Mixtures: Challenges and Opportunities
Al Assi, Ayat (author) / Sadek, Husam (author) / Massarra, Carol (author) / Friedland, Carol J. (author)
International Airfield and Highway Pavements Conference 2021 ; 2021 ; Virtual Conference
2021-06-04
Conference paper
Electronic Resource
English
| British Library Online Contents | 2016
| British Library Online Contents | 2016