J-integral calculation by finite element processing of measured full-field surface displacements
A novel method has been developed based on the conjoint use of digital image correlation to measure full field displacements and finite element simulations to extract the strain energy release rate of surface cracks. In this approach, a finite element model with imported full-field displacements mea...
| Main Authors: | , , , , |
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| Format: | Journal article |
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Springer Verlag
2017
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| _version_ | 1826267631064186880 |
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| author | Barhli, S Mostafavi, M Cinar, A Hollis, D Marrow, T |
| author_facet | Barhli, S Mostafavi, M Cinar, A Hollis, D Marrow, T |
| author_sort | Barhli, S |
| collection | OXFORD |
| description | A novel method has been developed based on the conjoint use of digital image correlation to measure full field displacements and finite element simulations to extract the strain energy release rate of surface cracks. In this approach, a finite element model with imported full-field displacements measured by DIC is solved and the J-integral is calculated, without knowledge of the specimen geometry and applied loads. This can be done even in a specimen that develops crack tip plasticity, if the elastic and yield behaviour of the material are known. The application of the method is demonstrated in an analysis of a fatigue crack, introduced to an aluminium alloy compact tension specimen (Al 2024, T351 heat condition). |
| first_indexed | 2024-03-06T20:57:09Z |
| format | Journal article |
| id | oxford-uuid:39a58a36-943a-42f8-b714-ded757e3d015 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T20:57:09Z |
| publishDate | 2017 |
| publisher | Springer Verlag |
| record_format | dspace |
| spelling | oxford-uuid:39a58a36-943a-42f8-b714-ded757e3d0152022-03-26T13:56:48ZJ-integral calculation by finite element processing of measured full-field surface displacementsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:39a58a36-943a-42f8-b714-ded757e3d015Symplectic Elements at OxfordSpringer Verlag2017Barhli, SMostafavi, MCinar, AHollis, DMarrow, TA novel method has been developed based on the conjoint use of digital image correlation to measure full field displacements and finite element simulations to extract the strain energy release rate of surface cracks. In this approach, a finite element model with imported full-field displacements measured by DIC is solved and the J-integral is calculated, without knowledge of the specimen geometry and applied loads. This can be done even in a specimen that develops crack tip plasticity, if the elastic and yield behaviour of the material are known. The application of the method is demonstrated in an analysis of a fatigue crack, introduced to an aluminium alloy compact tension specimen (Al 2024, T351 heat condition). |
| spellingShingle | Barhli, S Mostafavi, M Cinar, A Hollis, D Marrow, T J-integral calculation by finite element processing of measured full-field surface displacements |
| title | J-integral calculation by finite element processing of measured full-field surface displacements |
| title_full | J-integral calculation by finite element processing of measured full-field surface displacements |
| title_fullStr | J-integral calculation by finite element processing of measured full-field surface displacements |
| title_full_unstemmed | J-integral calculation by finite element processing of measured full-field surface displacements |
| title_short | J-integral calculation by finite element processing of measured full-field surface displacements |
| title_sort | j integral calculation by finite element processing of measured full field surface displacements |
| work_keys_str_mv | AT barhlis jintegralcalculationbyfiniteelementprocessingofmeasuredfullfieldsurfacedisplacements AT mostafavim jintegralcalculationbyfiniteelementprocessingofmeasuredfullfieldsurfacedisplacements AT cinara jintegralcalculationbyfiniteelementprocessingofmeasuredfullfieldsurfacedisplacements AT hollisd jintegralcalculationbyfiniteelementprocessingofmeasuredfullfieldsurfacedisplacements AT marrowt jintegralcalculationbyfiniteelementprocessingofmeasuredfullfieldsurfacedisplacements |