Numerical study of crack path by MMCG specimen using M integral
The mixed mode loading configuration occurs in many civil engineering and mechanical applications. In wood material, the study of this problem is very important due to the orthotropic character and the heterogeneity of the material. In order to study the mixed mode loading in wood material, Moutou...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2016-01-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero35/numero_35_art_08.pdf |
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| author | S. El Kabir R. Moutou Pitti N. Recho Y. Lapusta F. Dubois |
| author_facet | S. El Kabir R. Moutou Pitti N. Recho Y. Lapusta F. Dubois |
| author_sort | S. El Kabir |
| collection | DOAJ |
| description | The mixed mode loading configuration occurs in many civil engineering and mechanical applications. In wood
material, the study of this problem is very important due to the orthotropic character and the heterogeneity of the material.
In order to study the mixed mode loading in wood material, Moutou Pitti et al [1] have proposed a new specimen called
Mixed Mode Crack Growth (MMCG). The main goal of this geometry is to propose a decrease of the energy release rate
during the crack growth process. In this case, the fracture parameters can be decoupled into Mode I and Mode II in order
to determine the impact of time during creep crack test. The present work proposes to study the crack path stability in
MMCG specimen for different sizes and thicknesses. The Mθ integral, combining real and virtual mechanical displacement
fields is used in order to separate numerically mode I and mode II in the mixed mode ratio. The stability is shown for the
opening mode (Mode I), the shear mode (Mode II), and the mixed mode of 15°, 30°, 45°, 60°, 75° by computing the energy
release rate versus the crack length. Finally, it is shown that the MMCG specimen can be reduced in various shape and used
for example in small climate chamber in order to perform creep test at different temperature and moisture content levels. |
| format | Article |
| id | doaj-art-d617aaebd6d64df3bf71956f87073f41 |
| institution | Kabale University |
| issn | 1971-8993 1971-8993 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-d617aaebd6d64df3bf71956f87073f412025-01-03T00:39:56ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932016-01-011035647310.3221/IGF-ESIS.35.08Numerical study of crack path by MMCG specimen using M integralS. El Kabir0R. Moutou Pitti1N. Recho2Y. Lapusta3F. Dubois4Université Clermont Auvergne,FranceUniversité Clermont Auvergne,FranceUniversité Clermont Auvergne,FranceUniversité Clermont Auvergne,FranceLimoges University,FranceThe mixed mode loading configuration occurs in many civil engineering and mechanical applications. In wood material, the study of this problem is very important due to the orthotropic character and the heterogeneity of the material. In order to study the mixed mode loading in wood material, Moutou Pitti et al [1] have proposed a new specimen called Mixed Mode Crack Growth (MMCG). The main goal of this geometry is to propose a decrease of the energy release rate during the crack growth process. In this case, the fracture parameters can be decoupled into Mode I and Mode II in order to determine the impact of time during creep crack test. The present work proposes to study the crack path stability in MMCG specimen for different sizes and thicknesses. The Mθ integral, combining real and virtual mechanical displacement fields is used in order to separate numerically mode I and mode II in the mixed mode ratio. The stability is shown for the opening mode (Mode I), the shear mode (Mode II), and the mixed mode of 15°, 30°, 45°, 60°, 75° by computing the energy release rate versus the crack length. Finally, it is shown that the MMCG specimen can be reduced in various shape and used for example in small climate chamber in order to perform creep test at different temperature and moisture content levels.http://www.gruppofrattura.it/pdf/rivista/numero35/numero_35_art_08.pdfCrack stabilityMMCG specimenM integralEnergy release rate |
| spellingShingle | S. El Kabir R. Moutou Pitti N. Recho Y. Lapusta F. Dubois Numerical study of crack path by MMCG specimen using M integral Fracture and Structural Integrity Crack stability MMCG specimen M integral Energy release rate |
| title | Numerical study of crack path by MMCG specimen using M integral |
| title_full | Numerical study of crack path by MMCG specimen using M integral |
| title_fullStr | Numerical study of crack path by MMCG specimen using M integral |
| title_full_unstemmed | Numerical study of crack path by MMCG specimen using M integral |
| title_short | Numerical study of crack path by MMCG specimen using M integral |
| title_sort | numerical study of crack path by mmcg specimen using m integral |
| topic | Crack stability MMCG specimen M integral Energy release rate |
| url | http://www.gruppofrattura.it/pdf/rivista/numero35/numero_35_art_08.pdf |
| work_keys_str_mv | AT selkabir numericalstudyofcrackpathbymmcgspecimenusingmintegral AT rmoutoupitti numericalstudyofcrackpathbymmcgspecimenusingmintegral AT nrecho numericalstudyofcrackpathbymmcgspecimenusingmintegral AT ylapusta numericalstudyofcrackpathbymmcgspecimenusingmintegral AT fdubois numericalstudyofcrackpathbymmcgspecimenusingmintegral |