In this paper, a mixed stress formulation for linear elastodynamic analysis based on a modified Hellinger-Reissner functional and a consistent approach for selecting finite element approximations are presented. The key idea in this new approach is to choose stress approximations by taking into accou
Consistent discontinuous finite elements in elastodynamics
✍ Scribed by André Vinicius Celani Duarte; Eduardo Gomes Dutra do Carmo; Fernando Alves Rochinha
- Book ID
- 108391051
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 495 KB
- Volume
- 190
- Category
- Article
- ISSN
- 0045-7825
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📜 SIMILAR VOLUMES
A boundary element formulation having discontinuous curved quadratic elements is presented for 2D elastodynamics. The first fundamental solution for static case is subtracted from and added to the first fundamental solution for dynamic case. As both kernels have the same order of singularity, the in
## Abstract Grading rules for consistent and lumped elements are opposite. Optimal mass matrices on finite difference considerations are very sensitive to mesh grading. Sensitivity of the solution accuracy to the mesh ratio increases with element order.