Molecular Dynamics-Based Cohesive Zone Model for Mg/Mg<sub>17</sub>Al<sub>12</sub> Interface
The fracture of the Mg/Mg<sub>17</sub>Al<sub>12</sub> interface was investigated by molecular dynamics simulations. The interface crack extends in a brittle manner without noticeable plasticity. The distributions of normal stress and separation along the interface were examin...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-06-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/10/6/836 |
| _version_ | 1797564306880987136 |
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| author | Xiao Ru Zhuo Aibin Ma |
| author_facet | Xiao Ru Zhuo Aibin Ma |
| author_sort | Xiao Ru Zhuo |
| collection | DOAJ |
| description | The fracture of the Mg/Mg<sub>17</sub>Al<sub>12</sub> interface was investigated by molecular dynamics simulations. The interface crack extends in a brittle manner without noticeable plasticity. The distributions of normal stress and separation along the interface were examined to render a quantitative picture of the fracture process. A normal traction–separation curve was extracted from simulation and compared with three cohesive zone models, i.e., cubic polynomial cohesive zone model, exponential cohesive zone model, and bilinear cohesive zone model. The exponential cohesive zone model exhibits the best agreement with simulation results, followed by the bilinear cohesive zone model. |
| first_indexed | 2024-03-10T18:55:28Z |
| format | Article |
| id | doaj.art-8eb769be444f4964b45ca58f6f34f2dd |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T18:55:28Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-8eb769be444f4964b45ca58f6f34f2dd2023-11-20T04:50:01ZengMDPI AGMetals2075-47012020-06-0110683610.3390/met10060836Molecular Dynamics-Based Cohesive Zone Model for Mg/Mg<sub>17</sub>Al<sub>12</sub> InterfaceXiao Ru Zhuo0Aibin Ma1College of Mechanics and Materials, Hohai University, Nanjing 210098, ChinaCollege of Mechanics and Materials, Hohai University, Nanjing 210098, ChinaThe fracture of the Mg/Mg<sub>17</sub>Al<sub>12</sub> interface was investigated by molecular dynamics simulations. The interface crack extends in a brittle manner without noticeable plasticity. The distributions of normal stress and separation along the interface were examined to render a quantitative picture of the fracture process. A normal traction–separation curve was extracted from simulation and compared with three cohesive zone models, i.e., cubic polynomial cohesive zone model, exponential cohesive zone model, and bilinear cohesive zone model. The exponential cohesive zone model exhibits the best agreement with simulation results, followed by the bilinear cohesive zone model.https://www.mdpi.com/2075-4701/10/6/836molecular dynamics simulationcohesive zone modelMg/Mg<sub>17</sub>Al<sub>12</sub> interfacefracture |
| spellingShingle | Xiao Ru Zhuo Aibin Ma Molecular Dynamics-Based Cohesive Zone Model for Mg/Mg<sub>17</sub>Al<sub>12</sub> Interface Metals molecular dynamics simulation cohesive zone model Mg/Mg<sub>17</sub>Al<sub>12</sub> interface fracture |
| title | Molecular Dynamics-Based Cohesive Zone Model for Mg/Mg<sub>17</sub>Al<sub>12</sub> Interface |
| title_full | Molecular Dynamics-Based Cohesive Zone Model for Mg/Mg<sub>17</sub>Al<sub>12</sub> Interface |
| title_fullStr | Molecular Dynamics-Based Cohesive Zone Model for Mg/Mg<sub>17</sub>Al<sub>12</sub> Interface |
| title_full_unstemmed | Molecular Dynamics-Based Cohesive Zone Model for Mg/Mg<sub>17</sub>Al<sub>12</sub> Interface |
| title_short | Molecular Dynamics-Based Cohesive Zone Model for Mg/Mg<sub>17</sub>Al<sub>12</sub> Interface |
| title_sort | molecular dynamics based cohesive zone model for mg mg sub 17 sub al sub 12 sub interface |
| topic | molecular dynamics simulation cohesive zone model Mg/Mg<sub>17</sub>Al<sub>12</sub> interface fracture |
| url | https://www.mdpi.com/2075-4701/10/6/836 |
| work_keys_str_mv | AT xiaoruzhuo moleculardynamicsbasedcohesivezonemodelformgmgsub17subalsub12subinterface AT aibinma moleculardynamicsbasedcohesivezonemodelformgmgsub17subalsub12subinterface |