A discrete element model for damage and fracture of geomaterials under fatigue loading
Failure processes in geomaterials (concrete, asphalt concrete, masonry, etc.) under fatigue loading (repeated moving loads, cycles of temperature, etc.) are responsible for most of the dysfunctions in pavements, brick structures, etc. In the beginning of the lifetime of a structure, the material pre...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2017-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://doi.org/10.1051/epjconf/201714012018 |
| _version_ | 1818740167326826496 |
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| author | Gao Xiaofeng Koval Georg Chazallon Cyrille |
| author_facet | Gao Xiaofeng Koval Georg Chazallon Cyrille |
| author_sort | Gao Xiaofeng |
| collection | DOAJ |
| description | Failure processes in geomaterials (concrete, asphalt concrete, masonry, etc.) under fatigue loading (repeated moving loads, cycles of temperature, etc.) are responsible for most of the dysfunctions in pavements, brick structures, etc. In the beginning of the lifetime of a structure, the material presents only inner defects (micro cracks, voids, etc.). Due to the effect of the cyclic loading, these small defects tend to grow in size and quantity which damage the material, reducing its stiffness. With a relatively high number of cycles, these growing micro cracks become large cracks, which characterizes the fracture behavior. From a theoretical point of view, both mechanisms are treated differently. Fracture is usually described locally, with the propagation of cracks defined by the energy release rate at the crack tip; damage is usually associated to non-local approaches. In the present work, damage and fracture mechanics are combined in a local discrete element approach. |
| first_indexed | 2024-12-18T01:36:25Z |
| format | Article |
| id | doaj.art-577162c7bbca4a8d9f8805a379bd57ca |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-18T01:36:25Z |
| publishDate | 2017-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-577162c7bbca4a8d9f8805a379bd57ca2022-12-21T21:25:27ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011401201810.1051/epjconf/201714012018epjconf162589A discrete element model for damage and fracture of geomaterials under fatigue loadingGao Xiaofeng0Koval Georg1Chazallon Cyrille2ICUBE Laboratory, UMR 7357, CNRS, National Institute of Applied Sciences of StrasbourgICUBE Laboratory, UMR 7357, CNRS, National Institute of Applied Sciences of StrasbourgICUBE Laboratory, UMR 7357, CNRS, National Institute of Applied Sciences of StrasbourgFailure processes in geomaterials (concrete, asphalt concrete, masonry, etc.) under fatigue loading (repeated moving loads, cycles of temperature, etc.) are responsible for most of the dysfunctions in pavements, brick structures, etc. In the beginning of the lifetime of a structure, the material presents only inner defects (micro cracks, voids, etc.). Due to the effect of the cyclic loading, these small defects tend to grow in size and quantity which damage the material, reducing its stiffness. With a relatively high number of cycles, these growing micro cracks become large cracks, which characterizes the fracture behavior. From a theoretical point of view, both mechanisms are treated differently. Fracture is usually described locally, with the propagation of cracks defined by the energy release rate at the crack tip; damage is usually associated to non-local approaches. In the present work, damage and fracture mechanics are combined in a local discrete element approach.https://doi.org/10.1051/epjconf/201714012018 |
| spellingShingle | Gao Xiaofeng Koval Georg Chazallon Cyrille A discrete element model for damage and fracture of geomaterials under fatigue loading EPJ Web of Conferences |
| title | A discrete element model for damage and fracture of geomaterials under fatigue loading |
| title_full | A discrete element model for damage and fracture of geomaterials under fatigue loading |
| title_fullStr | A discrete element model for damage and fracture of geomaterials under fatigue loading |
| title_full_unstemmed | A discrete element model for damage and fracture of geomaterials under fatigue loading |
| title_short | A discrete element model for damage and fracture of geomaterials under fatigue loading |
| title_sort | discrete element model for damage and fracture of geomaterials under fatigue loading |
| url | https://doi.org/10.1051/epjconf/201714012018 |
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