Fracture Toughness Determination on an SCB Specimen by Meshless Methods
This work investigates fracture characteristics of a marble semi-circular bend (SCB) specimen with a pre-defined crack under a compressive loading condition. It aims at evaluating how the fracture toughness can be affected by the crack and span length variation. Numerically, the model is solved usin...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/5/2633 |
| _version_ | 1827651874758590464 |
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| author | Farid Mehri Sofiani Behzad V. Farahani Jorge Belinha |
| author_facet | Farid Mehri Sofiani Behzad V. Farahani Jorge Belinha |
| author_sort | Farid Mehri Sofiani |
| collection | DOAJ |
| description | This work investigates fracture characteristics of a marble semi-circular bend (SCB) specimen with a pre-defined crack under a compressive loading condition. It aims at evaluating how the fracture toughness can be affected by the crack and span length variation. Numerically, the model is solved using meshless methods, extended to the linear elastic fracture mechanics (LEFM), resorting to radial point interpolation method (RPIM) and its natural neighbor versions (NNRPIMv1 and NNRPIMv2). Alternatively, to validate the meshless method results, the problem is resolved following the finite element method (FEM) model based on the standard 2D constant strain triangle elements. As a result, fracture toughness and the critical strain energy release rate are characterized following the testing method on the cracked straight through semi-circular bend specimen (CSTSCB). A comparison is drawn amongst the theoretical, meshless methods and FEM results to evaluate the capability of advanced numerical methods. Encouraging results have been accomplished leading to validate the supporting numerical methodologies. |
| first_indexed | 2024-03-09T20:46:37Z |
| format | Article |
| id | doaj.art-5c4635189f1e483ba0ffc89e78a4847a |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T20:46:37Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-5c4635189f1e483ba0ffc89e78a4847a2023-11-23T22:43:52ZengMDPI AGApplied Sciences2076-34172022-03-01125263310.3390/app12052633Fracture Toughness Determination on an SCB Specimen by Meshless MethodsFarid Mehri Sofiani0Behzad V. Farahani1Jorge Belinha2FEUP, Faculty of Engineering, University of Porto, Dr. Roberto Frias Street, 4200-465 Porto, PortugalINEGI, Institute of Science and Innovation in Mechanical and Industrial Engineering, Dr. Roberto Frias Street, 400, 4200-465 Porto, PortugalISEP, Mechanical Engineering Department, School of Engineering, Polytechnic Porto, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, PortugalThis work investigates fracture characteristics of a marble semi-circular bend (SCB) specimen with a pre-defined crack under a compressive loading condition. It aims at evaluating how the fracture toughness can be affected by the crack and span length variation. Numerically, the model is solved using meshless methods, extended to the linear elastic fracture mechanics (LEFM), resorting to radial point interpolation method (RPIM) and its natural neighbor versions (NNRPIMv1 and NNRPIMv2). Alternatively, to validate the meshless method results, the problem is resolved following the finite element method (FEM) model based on the standard 2D constant strain triangle elements. As a result, fracture toughness and the critical strain energy release rate are characterized following the testing method on the cracked straight through semi-circular bend specimen (CSTSCB). A comparison is drawn amongst the theoretical, meshless methods and FEM results to evaluate the capability of advanced numerical methods. Encouraging results have been accomplished leading to validate the supporting numerical methodologies.https://www.mdpi.com/2076-3417/12/5/2633fracture toughnessSCBFEMLEFMmeshless methodsRPIM |
| spellingShingle | Farid Mehri Sofiani Behzad V. Farahani Jorge Belinha Fracture Toughness Determination on an SCB Specimen by Meshless Methods Applied Sciences fracture toughness SCB FEM LEFM meshless methods RPIM |
| title | Fracture Toughness Determination on an SCB Specimen by Meshless Methods |
| title_full | Fracture Toughness Determination on an SCB Specimen by Meshless Methods |
| title_fullStr | Fracture Toughness Determination on an SCB Specimen by Meshless Methods |
| title_full_unstemmed | Fracture Toughness Determination on an SCB Specimen by Meshless Methods |
| title_short | Fracture Toughness Determination on an SCB Specimen by Meshless Methods |
| title_sort | fracture toughness determination on an scb specimen by meshless methods |
| topic | fracture toughness SCB FEM LEFM meshless methods RPIM |
| url | https://www.mdpi.com/2076-3417/12/5/2633 |
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