Abstract
A time-domain (TD) FEM-BEM iterative coupling algorithm with dual-independent discretizations in both time and space domains for dynamics is presented, allowing the independent temporal and spatial discretizations and solutions for each sub-domain in the coupled model. According to the continuity and equilibrium equations between the sub-domains of TD-FEM and TD-BEM, as well as the continuity condition along time, the displacement and force converting matrices and the time inter/extra-polation scheme in time domain are derived to exchange data between TD-FEM and TD-BEM nodes on the interface, which are not required to be positionally matched. The proposed iterative coupling algorithm with dual-independent discretizations in time and space domains is verified by two examples to be of the advantages of the independence for one's own formulation, high computational accuracy, good flexibility and versatility.
| Original language | English |
|---|---|
| Pages (from-to) | 317-327 |
| Number of pages | 11 |
| Journal | Engineering Analysis with Boundary Elements |
| Volume | 160 |
| DOIs | |
| State | Published - Mar 2024 |
| Externally published | Yes |
Keywords
- Dual-independent discretizations
- Dynamics
- Iterative coupling algorithm
- TD-BEM
- TD-FEM
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