Publicação
Multi-cracks modeling in reflective cracking
| Resumo: | Reflective cracking is a major concern for engineers facing the problem of road maintenance and rehabilitation. The problem appears due to the presence of cracks in the old pavement layers that propagate into the pavement overlay layer when traffic load passes over the cracks and due to the temperature variation. The stress concentration in the overlay just above the existing cracks is responsible for the appearance and crack propagation throughout the overlay. The analysis of the reflective cracking phenomenon is usually made by numerical modeling simulating the presence of cracks in the existing pavement and the stress concentration in the crack tip is assessed to predict either the cracking propagation rate or the expected fatigue life of the overlay. Numerical modeling to study reflective cracking is made by simulating one crack in the existing pavement and the loading is usually applied considering the shear mode of crack opening. Sometimes the simulation considers the mode I of crack opening, mainly when temperature effects are predominant. Thus, this paper presents a study where multiple cracks are modeled to assess the reflective cracking phenomenon and to compare to the case of only one crack. The modeling with only one crack was made simulating both mode I and mode II of crack opening taking into account the traffic effects. The influence of multiple cracks was expressed in terms of stress and strain in the zone above existing cracks. One of the conclusions from the current study is that the presence of multiple cracks can lead to a state of stress/strain higher than those obtained with only one crack. Also the position of the crack modeled in the finite elements analysis have a significant influence in the state of stress/strain obtained. However, the consideration of only one crack is sufficient to obtain significant results in the reflective cracking modeling. |
|---|---|
| Autores principais: | Pais, Jorge |
| Outros Autores: | Minhoto, Manuel; Shatnawi, Shakir |
| Assunto: | Road pavements Cracking |
| Ano: | 2012 |
| País: | Portugal |
| Tipo de documento: | comunicação em conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Bragança |
| Idioma: | inglês |
| Origem: | Biblioteca Digital do IPB |
| _version_ | 1867172827553071104 |
|---|---|
| author | Pais, Jorge |
| author2 | Minhoto, Manuel Shatnawi, Shakir |
| author2_role | author author |
| author_facet | Pais, Jorge Minhoto, Manuel Shatnawi, Shakir |
| author_role | author |
| contributor_name_str_mv | Biblioteca Digital do IPB |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Pais, Jorge\"},{\"Person.name\":\"Minhoto, Manuel\",\"Person.identifier.orcid\":\"0000-0002-0612-0316\"},{\"Person.name\":\"Shatnawi, Shakir\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Biblioteca Digital do IPB |
| datacite.creators.creator.creatorName.fl_str_mv | Pais, Jorge Minhoto, Manuel Shatnawi, Shakir |
| datacite.date.Accepted.fl_str_mv | 2012-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2014-01-02T13:27:15Z |
| datacite.date.embargoed.fl_str_mv | 2014-01-02T13:27:15Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Road pavements Cracking |
| datacite.titles.title.fl_str_mv | Multi-cracks modeling in reflective cracking |
| dc.contributor.none.fl_str_mv | Biblioteca Digital do IPB |
| dc.creator.none.fl_str_mv | Pais, Jorge Minhoto, Manuel Shatnawi, Shakir |
| dc.date.Accepted.fl_str_mv | 2012-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2014-01-02T13:27:15Z |
| dc.date.embargoed.fl_str_mv | 2014-01-02T13:27:15Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10198/9054 |
| dc.language.none.fl_str_mv | eng |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Road pavements Cracking |
| dc.title.fl_str_mv | Multi-cracks modeling in reflective cracking |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_5794 |
| description | Reflective cracking is a major concern for engineers facing the problem of road maintenance and rehabilitation. The problem appears due to the presence of cracks in the old pavement layers that propagate into the pavement overlay layer when traffic load passes over the cracks and due to the temperature variation. The stress concentration in the overlay just above the existing cracks is responsible for the appearance and crack propagation throughout the overlay. The analysis of the reflective cracking phenomenon is usually made by numerical modeling simulating the presence of cracks in the existing pavement and the stress concentration in the crack tip is assessed to predict either the cracking propagation rate or the expected fatigue life of the overlay. Numerical modeling to study reflective cracking is made by simulating one crack in the existing pavement and the loading is usually applied considering the shear mode of crack opening. Sometimes the simulation considers the mode I of crack opening, mainly when temperature effects are predominant. Thus, this paper presents a study where multiple cracks are modeled to assess the reflective cracking phenomenon and to compare to the case of only one crack. The modeling with only one crack was made simulating both mode I and mode II of crack opening taking into account the traffic effects. The influence of multiple cracks was expressed in terms of stress and strain in the zone above existing cracks. One of the conclusions from the current study is that the presence of multiple cracks can lead to a state of stress/strain higher than those obtained with only one crack. Also the position of the crack modeled in the finite elements analysis have a significant influence in the state of stress/strain obtained. However, the consideration of only one crack is sufficient to obtain significant results in the reflective cracking modeling. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | conferencePaper |
| fulltext.url.fl_str_mv | https://bibliotecadigital.ipb.pt/bitstreams/9e6887f3-d2fe-4d75-99a4-e7be4d0703d9/download |
| id | ipb_b5f1b0654f5dcd62bcdcb2e4d32bbbfb |
| identifier.url.fl_str_mv | http://hdl.handle.net/10198/9054 |
| instacron_str | ipb |
| institution | Instituto Politécnico de Bragança |
| instname_str | Instituto Politécnico de Bragança |
| language | eng |
| network_acronym_str | ipb |
| network_name_str | Biblioteca Digital do IPB |
| oai_identifier_str | oai:bibliotecadigital.ipb.pt:10198/9054 |
| organization_str_mv | urn:organizationAcronym:ipb |
| person_str_mv | Pais, Jorge Minhoto, Manuel Minhoto, Manuel https://www.ciencia-id.pt/8111-B03D-46D2 8111-B03D-46D2 http://orcid.org/0000-0002-0612-0316 0000-0002-0612-0316 Shatnawi, Shakir |
| publishDate | 2012 |
| reponame_str | Biblioteca Digital do IPB |
| repository_id_str | urn:repositoryAcronym:ipb |
| service_str_mv | urn:repositoryAcronym:ipb |
| spelling | engporReflective cracking is a major concern for engineers facing the problem of road maintenance and rehabilitation. The problem appears due to the presence of cracks in the old pavement layers that propagate into the pavement overlay layer when traffic load passes over the cracks and due to the temperature variation. The stress concentration in the overlay just above the existing cracks is responsible for the appearance and crack propagation throughout the overlay. The analysis of the reflective cracking phenomenon is usually made by numerical modeling simulating the presence of cracks in the existing pavement and the stress concentration in the crack tip is assessed to predict either the cracking propagation rate or the expected fatigue life of the overlay. Numerical modeling to study reflective cracking is made by simulating one crack in the existing pavement and the loading is usually applied considering the shear mode of crack opening. Sometimes the simulation considers the mode I of crack opening, mainly when temperature effects are predominant. Thus, this paper presents a study where multiple cracks are modeled to assess the reflective cracking phenomenon and to compare to the case of only one crack. The modeling with only one crack was made simulating both mode I and mode II of crack opening taking into account the traffic effects. The influence of multiple cracks was expressed in terms of stress and strain in the zone above existing cracks. One of the conclusions from the current study is that the presence of multiple cracks can lead to a state of stress/strain higher than those obtained with only one crack. Also the position of the crack modeled in the finite elements analysis have a significant influence in the state of stress/strain obtained. However, the consideration of only one crack is sufficient to obtain significant results in the reflective cracking modeling.application/pdfporMulti-cracks modeling in reflective crackingPais, JorgePersonalMinhoto, ManuelDSpacehttp://dspace.org/items/5a104ed9-9e65-41a2-88af-43309083c985DSpacehttp://dspace.org/items/5a104ed9-9e65-41a2-88af-43309083c985MinhotoManuelCiência IDhttps://www.ciencia-id.pt8111-B03D-46D2ORCIDhttp://orcid.org0000-0002-0612-0316Shatnawi, ShakirHostingInstitutionOrganizationalBiblioteca Digital do IPBe-mailmailto:dspace@ipb.ptdspace@ipb.ptISBNIsPartOf978-94-007-4565-0ISSNIsPartOf2211-0844URNIsPartOfDOI 10.1007/978-94-007-4566-72014-01-02T13:27:15Z20122012-01-01T00:00:00ZHandlehttp://hdl.handle.net/10198/9054http://purl.org/coar/access_right/c_abf2open accessRoad pavementsCracking902827 bytesother research producthttp://purl.org/coar/resource_type/c_5794conference paperhttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://bibliotecadigital.ipb.pt/bitstreams/9e6887f3-d2fe-4d75-99a4-e7be4d0703d9/download7th RILEM International Conference on Cracking in Pavements - Mechanisms, Modeling, Testing, Detection Prevention and Case Histories.4441451Delft, Netherlands |
| spellingShingle | Multi-cracks modeling in reflective cracking Pais, Jorge Road pavements Cracking |
| status | SINGLETON |
| subject.fl_str_mv | Road pavements Cracking |
| title | Multi-cracks modeling in reflective cracking |
| title_full | Multi-cracks modeling in reflective cracking |
| title_fullStr | Multi-cracks modeling in reflective cracking |
| title_full_unstemmed | Multi-cracks modeling in reflective cracking |
| title_short | Multi-cracks modeling in reflective cracking |
| title_sort | Multi-cracks modeling in reflective cracking |
| topic | Road pavements Cracking |
| topic_facet | Road pavements Cracking |
| url | http://hdl.handle.net/10198/9054 |
| visible | 1 |