A non-local transient-gradient enhanced damage modelling method incorporating variable Poisson’s ratio for brittle bi-material composites
Widely reported damage modelling methods inherently use elastic brittle rapidly decaying responses for materials under both uniaxial tension and compression, in spite of the existence of ample experimental evidences that the damaging process under compression is significantly different to that under...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-04-01
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| Series: | Engineering Science and Technology, an International Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2215098618316835 |
| _version_ | 1818990471329873920 |
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| author | Ali Jelvehpour Tatheer Zahra Manicka Dhanasekar |
| author_facet | Ali Jelvehpour Tatheer Zahra Manicka Dhanasekar |
| author_sort | Ali Jelvehpour |
| collection | DOAJ |
| description | Widely reported damage modelling methods inherently use elastic brittle rapidly decaying responses for materials under both uniaxial tension and compression, in spite of the existence of ample experimental evidences that the damaging process under compression is significantly different to that under tension. This paper reports a damage evolution law suitable for representing the gradual damaging under compression. Sensitivity of the parameters of the law has been systematically presented. Internal damaging process of brittle materials has been represented through increase in Poisson’s ratio, thus treating this property as a variable affected by the damage levels. These damage evolution laws have been incorporated into a diffused form of non-local transient-enhanced model and applied to the analysis of masonry through two geometrically different representative volume elements (RVE) with periodic boundary conditions. It has been shown that the geometry of the RVE is insignificant to the prediction of the stress-strain responses of masonry assemblages, thereby supporting adoption of a simple geometry of RVE for predicting the behaviour of bi-material brittle composites. |
| first_indexed | 2024-12-20T19:54:54Z |
| format | Article |
| id | doaj.art-4c5611305fa147249b4c7893e0393266 |
| institution | Directory Open Access Journal |
| issn | 2215-0986 |
| language | English |
| last_indexed | 2024-12-20T19:54:54Z |
| publishDate | 2020-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Engineering Science and Technology, an International Journal |
| spelling | doaj.art-4c5611305fa147249b4c7893e03932662022-12-21T19:28:12ZengElsevierEngineering Science and Technology, an International Journal2215-09862020-04-01232432444A non-local transient-gradient enhanced damage modelling method incorporating variable Poisson’s ratio for brittle bi-material compositesAli Jelvehpour0Tatheer Zahra1Manicka Dhanasekar2Queensland University of Technology, Brisbane, QLD 4000, AustraliaQueensland University of Technology, Brisbane, QLD 4000, AustraliaCorresponding author.; Queensland University of Technology, Brisbane, QLD 4000, AustraliaWidely reported damage modelling methods inherently use elastic brittle rapidly decaying responses for materials under both uniaxial tension and compression, in spite of the existence of ample experimental evidences that the damaging process under compression is significantly different to that under tension. This paper reports a damage evolution law suitable for representing the gradual damaging under compression. Sensitivity of the parameters of the law has been systematically presented. Internal damaging process of brittle materials has been represented through increase in Poisson’s ratio, thus treating this property as a variable affected by the damage levels. These damage evolution laws have been incorporated into a diffused form of non-local transient-enhanced model and applied to the analysis of masonry through two geometrically different representative volume elements (RVE) with periodic boundary conditions. It has been shown that the geometry of the RVE is insignificant to the prediction of the stress-strain responses of masonry assemblages, thereby supporting adoption of a simple geometry of RVE for predicting the behaviour of bi-material brittle composites.http://www.sciencedirect.com/science/article/pii/S2215098618316835Brittle compositesTransient-gradient damageVariable Poisson’s ratioRepresentative volume elementPeriodic boundary conditionsMasonry |
| spellingShingle | Ali Jelvehpour Tatheer Zahra Manicka Dhanasekar A non-local transient-gradient enhanced damage modelling method incorporating variable Poisson’s ratio for brittle bi-material composites Engineering Science and Technology, an International Journal Brittle composites Transient-gradient damage Variable Poisson’s ratio Representative volume element Periodic boundary conditions Masonry |
| title | A non-local transient-gradient enhanced damage modelling method incorporating variable Poisson’s ratio for brittle bi-material composites |
| title_full | A non-local transient-gradient enhanced damage modelling method incorporating variable Poisson’s ratio for brittle bi-material composites |
| title_fullStr | A non-local transient-gradient enhanced damage modelling method incorporating variable Poisson’s ratio for brittle bi-material composites |
| title_full_unstemmed | A non-local transient-gradient enhanced damage modelling method incorporating variable Poisson’s ratio for brittle bi-material composites |
| title_short | A non-local transient-gradient enhanced damage modelling method incorporating variable Poisson’s ratio for brittle bi-material composites |
| title_sort | non local transient gradient enhanced damage modelling method incorporating variable poisson s ratio for brittle bi material composites |
| topic | Brittle composites Transient-gradient damage Variable Poisson’s ratio Representative volume element Periodic boundary conditions Masonry |
| url | http://www.sciencedirect.com/science/article/pii/S2215098618316835 |
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