Crack path predictions and experiments in plane structures considering anisotropic properties and material interfaces
In many engineering applications special requirements are directed to a material's fracture behavior and the prediction of crack paths. Especially if the material exhibits anisotropic elastic properties or fracture toughnesses, e.g. in textured or composite materials, the simulation of crack...
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Gruppo Italiano Frattura
2015-10-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero34/numero_34_art_22.pdf |
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| author | P.O. Judt A. Ricoeur |
| author_facet | P.O. Judt A. Ricoeur |
| author_sort | P.O. Judt |
| collection | DOAJ |
| description | In many engineering applications special requirements are directed to a material's fracture behavior
and the prediction of crack paths. Especially if the material exhibits anisotropic elastic properties or fracture
toughnesses, e.g. in textured or composite materials, the simulation of crack paths is challenging. Here, the
application of path independent interaction integrals (I-integrals), J-, L- and M-integrals is beneficial for an
accurate crack tip loading analysis.
Numerical tools for the calculation of loading quantities using these path-invariant integrals are implemented
into the commercial finite element (FE)-code ABAQUS. Global approaches of the integrals are convenient
considering crack tips approaching other crack faces, internal boundaries or material interfaces. Curved crack
faces require special treatment with respect to integration contours. Numerical crack paths are predicted based
on FE calculations of the boundary value problem in connection with an intelligent adaptive re-meshing
algorithm. Considering fracture toughness anisotropy and accounting for inelastic effects due to small plastic
zones in the crack tip region, the numerically predicted crack paths of different types of specimens with material
interfaces and internal boundaries are compared to subcritically grown paths obtained from experiments. |
| format | Article |
| id | doaj-art-21b37f80a4a048ad8670ff1bde063e5d |
| institution | Kabale University |
| issn | 1971-8993 1971-8993 |
| language | English |
| publishDate | 2015-10-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-21b37f80a4a048ad8670ff1bde063e5d2025-02-03T09:45:04ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932015-10-0193420821510.3221/IGF-ESIS.34.22Crack path predictions and experiments in plane structures considering anisotropic properties and material interfacesP.O. Judt0A. Ricoeur1University of Kassel, Institute of Mechanics, 34125 Kassel, GermanyUniversity of Kassel, Institute of Mechanics, 34125 Kassel, GermanyIn many engineering applications special requirements are directed to a material's fracture behavior and the prediction of crack paths. Especially if the material exhibits anisotropic elastic properties or fracture toughnesses, e.g. in textured or composite materials, the simulation of crack paths is challenging. Here, the application of path independent interaction integrals (I-integrals), J-, L- and M-integrals is beneficial for an accurate crack tip loading analysis. Numerical tools for the calculation of loading quantities using these path-invariant integrals are implemented into the commercial finite element (FE)-code ABAQUS. Global approaches of the integrals are convenient considering crack tips approaching other crack faces, internal boundaries or material interfaces. Curved crack faces require special treatment with respect to integration contours. Numerical crack paths are predicted based on FE calculations of the boundary value problem in connection with an intelligent adaptive re-meshing algorithm. Considering fracture toughness anisotropy and accounting for inelastic effects due to small plastic zones in the crack tip region, the numerically predicted crack paths of different types of specimens with material interfaces and internal boundaries are compared to subcritically grown paths obtained from experiments.http://www.gruppofrattura.it/pdf/rivista/numero34/numero_34_art_22.pdfL-integralJ-M-L-integralInteraction integralFracture toughness anisotropyMaterial interfacesCrack pathsFracture process zone |
| spellingShingle | P.O. Judt A. Ricoeur Crack path predictions and experiments in plane structures considering anisotropic properties and material interfaces Fracture and Structural Integrity L-integral J-M-L-integral Interaction integral Fracture toughness anisotropy Material interfaces Crack paths Fracture process zone |
| title | Crack path predictions and experiments in plane structures considering anisotropic properties and material interfaces |
| title_full | Crack path predictions and experiments in plane structures considering anisotropic properties and material interfaces |
| title_fullStr | Crack path predictions and experiments in plane structures considering anisotropic properties and material interfaces |
| title_full_unstemmed | Crack path predictions and experiments in plane structures considering anisotropic properties and material interfaces |
| title_short | Crack path predictions and experiments in plane structures considering anisotropic properties and material interfaces |
| title_sort | crack path predictions and experiments in plane structures considering anisotropic properties and material interfaces |
| topic | L-integral J-M-L-integral Interaction integral Fracture toughness anisotropy Material interfaces Crack paths Fracture process zone |
| url | http://www.gruppofrattura.it/pdf/rivista/numero34/numero_34_art_22.pdf |
| work_keys_str_mv | AT pojudt crackpathpredictionsandexperimentsinplanestructuresconsideringanisotropicpropertiesandmaterialinterfaces AT aricoeur crackpathpredictionsandexperimentsinplanestructuresconsideringanisotropicpropertiesandmaterialinterfaces |