| Autor: |
Shengrong Hu, Jingjing Xu, Xinhong Liu |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Forces in Mechanics, Vol 17, Iss , Pp 100293- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2666-3597 |
| DOI: |
10.1016/j.finmec.2024.100293 |
| Popis: |
A previous 8-node 24-degree-of-freedom hexahedral element H8i9 is modified to improve its performance in structures of various shapes, especially in plates and shells. First, the complicated correction coefficients for non-conforming modes required by the patch test are reduced to constant values independent of the element. Second, the element strain field is enhanced with bilinear modes by the introduction of a trilinear non-conforming mode. Third, the iterative regularization used to address the ill-conditioned stiffness matrix is replaced by a special 9-point integration rule. Benchmark tests demonstrate that the new element H8ij10 outperforms the previous version, particularly with a notable improvement in coarse-mesh accuracy in plate and shell issues. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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