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Fatigue modeling as related to flexible pavement design - State of the art
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering.ORCID iD: 0000-0002-7692-714X
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering.
2007 (English)In: International Journal on Road Materials and Pavement Design, ISSN 1468-0629, E-ISSN 2164-7402, Vol. 8, no 2, 165-205 p.Article, review/survey (Refereed) Published
Abstract [en]

A literature study of rheological and fatigue modeling of asphalt mixtures is presented. Theoretical aspects on structural modeling, rheological behavior and the fatigue integration in design procedures are reviewed In principle, pavement design methods can be categorized in three broad groups: empirical, semi-mechanistic and fully mechanistic methods. Pavement design is generally performed using semi-mechanistic methods comprising analytical or numerical structural response models and deterioration modeling based on transfer functions and shift factors. In the case of fatigue deterioration, several approaches have been elaborated e.g. classical models, fracture mechanics and damage mechanics. The approaches differ regarding theoretical foundation and evaluation methods used. Recognizing significant limitations concerning theoretical basis as well as lack of empirical support for current design methods, a shift in paradigm from semi-empirical methods towards more advanced fully mechanistic methods have been initiated. According to this approach, improved pavements are achieved by appropriate design methods which are capable of predicting fatigue resistance in the actual pavement environment, and thus taking into account complex stress conditions, influence of temperature and material characteristics, such as aging and healing.

Place, publisher, year, edition, pages
2007. Vol. 8, no 2, 165-205 p.
Keyword [en]
flexible pavement design, fatigue, rheology, viscoelasticity, asphalt concrete
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-37073DOI: 10.3166/rmpd.8.165-205ISI: 000247256500003Scopus ID: 2-s2.0-34547257855OAI: oai:DiVA.org:kth-37073DiVA: diva2:431992
Available from: 2011-07-28 Created: 2011-07-28 Last updated: 2017-12-08Bibliographically approved

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Lundström, RobertEkblad, JonasIsacsson, UlfKarlsson, Robert
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