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The prediction of fatigue life using the k1-k2 relationship

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dc.contributor.authorPais, Jorge
dc.contributor.authorPereira, Paulo
dc.contributor.authorMinhoto, Manuel
dc.contributor.authorFontes, Liseane
dc.contributor.authorKumar, D.S.N.V.A.
dc.contributor.authorSilva, B.T.A.
dc.date.accessioned2010-01-30T15:05:12Z
dc.date.available2010-01-30T15:05:12Z
dc.date.issued2009
dc.description.abstractFatigue resistance is used in the analysis and design of pavements to predict their life cycle. It is evaluated through time consuming laboratory tests, mainly when performed at very low strain levels. At low strain levels the testing time can last more than one day. Due to the heterogeneity of the material, a large number of samples are tested during days or weeks. The results of fatigue tests are expressed in terms of the number of cycles for the tensile strain level applied. Two constants (k1 and k2) obtained from a statistical analysis take part in this relationship. To know these two constants, at least two fatigue tests are needed, performed at different strain levels. k1 and k2 can be correlated and, in this case, the relationship between the fatigue life and the strain level has only one constant, which can be evaluated using the results obtained by a fatigue test. This paper presents the evaluation of the k1 and k2 relationship for Portuguese mixtures based on the results of 32 different asphalt mixtures composed by four different types of aggregate gradations.pt
dc.identifier.citationPais, Jorge C.; Pereira, Paulo A.A.; Minhoto, Manuel J. C.; Fontes, Liseane; Kumar, D.S.N.V.A.; Silva, B.T.A. (2009). The prediction of fatigue life using the k1-k2 relationship. In Proceedings of the 2nd Workshop on Four-point Bending. University of Minho. p.39-46. J. Pais (ed.). ISBN 978-972-8692-42-1pt
dc.identifier.isbn978-972-8692-42-1
dc.identifier.urihttp://hdl.handle.net/10198/1589
dc.language.isoengpt
dc.publisherUniversidade do Minhopt
dc.relation.ispartofseries2nd Workshop on Four Point Bending;
dc.relation.publisherversionhttp://www.civil.uminho.pt/4pb/4pb_platform/index.htmpt
dc.subjectAsphalt mixturespt
dc.subjectFatigue resistancept
dc.subjectFour point bending testspt
dc.subjectFlexible pavementspt
dc.titleThe prediction of fatigue life using the k1-k2 relationshippt
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceUniversity of Minho, Guimarães, Portugalpt
oaire.citation.titleProceedings of 2nd Workshop on Four Point Bendingpt
person.familyNameCosta Minhoto
person.givenNameManuel Joaquim
person.identifier.ciencia-id8111-B03D-46D2
person.identifier.orcid0000-0002-0612-0316
rcaap.rightsopenAccesspt
rcaap.typeconferenceObjectpt
relation.isAuthorOfPublication5a104ed9-9e65-41a2-88af-43309083c985
relation.isAuthorOfPublication.latestForDiscovery5a104ed9-9e65-41a2-88af-43309083c985

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