دورية أكاديمية
Transmitting boundary conditions for 1D peridynamics
| العنوان: | Transmitting boundary conditions for 1D peridynamics |
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| المؤلفون: | Wang, Linjuan, Chen, Yongshuai, Xu, Jifeng, Wang, Jianxiang |
| المساهمون: | Wang, JX (reprint author), Peking Univ, Dept Mech & Engn Sci, Coll Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China., Peking Univ, Dept Mech & Engn Sci, Coll Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China., Beijing Aeronaut Sci & Technol Res Inst, Beijing 100083, Peoples R China., Peking Univ, Coll Engn, CAPT HEDPS, MoE, Beijing 100871, Peoples R China., Peking Univ, Coll Engn, IFSA Collaborat Innovat Ctr, MoE, Beijing 100871, Peoples R China. |
| المصدر: | SCI |
| بيانات النشر: | INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING |
| سنة النشر: | 2017 |
| المجموعة: | Peking University Institutional Repository (PKU IR) / 北京大学机构知识库 |
| مصطلحات موضوعية: | peridynamics, transmitting boundary conditions, nonlocality, meshfree methods, PERFECTLY MATCHED LAYER, LONG-RANGE FORCES, SIMULATIONS, DYNAMICS, MODEL, ELASTICITY, CONTINUUM, COMPOSITE, FRACTURE, BAR |
| الوصف: | The peridynamic theory reformulates the equations of continuum mechanics in terms of integro-differential equations instead of partial differential equations. It is not straightforward to apply the available artificial boundary conditions for continua to peridynamic modeling. We therefore develop peridynamic transmitting boundary conditions (PTBCs) for 1D wave propagation. Differently from the previous method where the matching boundary condition is constructed for only one boundary material point, the PTBCs are established by considering the interaction and exchange of information between a group of boundary material points and another group of inner material points. The motion of the boundary material points is recursively constructed in terms of their locations and is determined through matching the peridynamic dispersion relation. The effectiveness of the PTBCs is examined by reflection analyses, numerical tests, and numerical convergent conditions. Furthermore, two-way interfacial conditions are proposed. The PTBCs are then applied to simulations of wave propagation in a bar with a defect, a composite bar with interfaces, and a domain with a seismic source. All the analyses and applications demonstrate that the PTBCs can effectively remove undesired numerical reflections at artificial boundaries. The methodology may be applied to modeling of wave propagation by other nonlocal theories. Copyright (C) 2016 John Wiley & Sons, Ltd. ; National Natural Science Foundation of China [11521202, 11232001]; China Postdoctoral Science Foundation [2014M561539]; Technology Foundation Grant for Selected Overseas Chinese Scholars ; SCI(E) ; ARTICLE ; 4 ; 379-400 ; 110 |
| نوع الوثيقة: | journal/newspaper |
| اللغة: | English |
| تدمد: | 0029-5981 1097-0207 |
| العلاقة: | INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING.2017,110(4),379-400.; 1908200; http://hdl.handle.net/20.500.11897/473879Test; WOS:000398799900004 |
| DOI: | 10.1002/nme.5373 |
| الإتاحة: | https://doi.org/20.500.11897/473879Test https://doi.org/10.1002/nme.5373Test https://hdl.handle.net/20.500.11897/473879Test |
| رقم الانضمام: | edsbas.746A4CCE |
| قاعدة البيانات: | BASE |
| تدمد: | 00295981 10970207 |
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| DOI: | 10.1002/nme.5373 |