Traction-Associated Peridynamic Motion Equation and Its Verification in the Plane Stress and Fracture Problems
How to prescribe traction on boundary surface is still an open question in peridynamics. This problem is investigated in this paper. Through introducing the induced body force defined by boundary traction, the Silling’s peridynamic motion equation is extended to a new formulation called the traction...
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MDPI AG
2023-03-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/6/2252 |
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| author | Ming Yu Zeyuan Zhou Zaixing Huang |
| author_facet | Ming Yu Zeyuan Zhou Zaixing Huang |
| author_sort | Ming Yu |
| collection | DOAJ |
| description | How to prescribe traction on boundary surface is still an open question in peridynamics. This problem is investigated in this paper. Through introducing the induced body force defined by boundary traction, the Silling’s peridynamic motion equation is extended to a new formulation called the traction-associated peridynamic motion equation, which is verified to be compatible with the conservation laws of linear momentum and angular momentum. The energy conservation equation derived from the traction-associated peridynamic motion equation has the same form as that in the original peridynamics advanced by Silling. Therefore, the constitutive models of the original peridynamics can be directly applied to the traction-associated peridynamic motion equation. Some benchmark examples in the plane stress problems are calculated. The numerical solutions agree well with the classical elasticity solutions, and the volume correction and the surface correction are no longer needed in the numerical algorithm. These results show that the traction-associated peridynamic motion equation not only retains all advantages of the original peridynamics, but also can conveniently deal with the complex traction boundary conditions. |
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| format | Article |
| id | doaj.art-1bf73ff23f4b41fdb18e0e065ae5edc7 |
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| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T06:14:59Z |
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| spelling | doaj.art-1bf73ff23f4b41fdb18e0e065ae5edc72023-11-17T12:19:39ZengMDPI AGMaterials1996-19442023-03-01166225210.3390/ma16062252Traction-Associated Peridynamic Motion Equation and Its Verification in the Plane Stress and Fracture ProblemsMing Yu0Zeyuan Zhou1Zaixing Huang2State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, ChinaState Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, ChinaState Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, ChinaHow to prescribe traction on boundary surface is still an open question in peridynamics. This problem is investigated in this paper. Through introducing the induced body force defined by boundary traction, the Silling’s peridynamic motion equation is extended to a new formulation called the traction-associated peridynamic motion equation, which is verified to be compatible with the conservation laws of linear momentum and angular momentum. The energy conservation equation derived from the traction-associated peridynamic motion equation has the same form as that in the original peridynamics advanced by Silling. Therefore, the constitutive models of the original peridynamics can be directly applied to the traction-associated peridynamic motion equation. Some benchmark examples in the plane stress problems are calculated. The numerical solutions agree well with the classical elasticity solutions, and the volume correction and the surface correction are no longer needed in the numerical algorithm. These results show that the traction-associated peridynamic motion equation not only retains all advantages of the original peridynamics, but also can conveniently deal with the complex traction boundary conditions.https://www.mdpi.com/1996-1944/16/6/2252peridynamicstraction-associated peridynamic motion equationtraction boundary conditionbond-based constitutive model |
| spellingShingle | Ming Yu Zeyuan Zhou Zaixing Huang Traction-Associated Peridynamic Motion Equation and Its Verification in the Plane Stress and Fracture Problems Materials peridynamics traction-associated peridynamic motion equation traction boundary condition bond-based constitutive model |
| title | Traction-Associated Peridynamic Motion Equation and Its Verification in the Plane Stress and Fracture Problems |
| title_full | Traction-Associated Peridynamic Motion Equation and Its Verification in the Plane Stress and Fracture Problems |
| title_fullStr | Traction-Associated Peridynamic Motion Equation and Its Verification in the Plane Stress and Fracture Problems |
| title_full_unstemmed | Traction-Associated Peridynamic Motion Equation and Its Verification in the Plane Stress and Fracture Problems |
| title_short | Traction-Associated Peridynamic Motion Equation and Its Verification in the Plane Stress and Fracture Problems |
| title_sort | traction associated peridynamic motion equation and its verification in the plane stress and fracture problems |
| topic | peridynamics traction-associated peridynamic motion equation traction boundary condition bond-based constitutive model |
| url | https://www.mdpi.com/1996-1944/16/6/2252 |
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