| Autor: |
Thanh Chau-Dinh, Nhat Le-Tran |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Journal of Applied and Computational Mechanics, Vol 6, Iss Special Issue, Pp 1335-1347 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2383-4536 |
| DOI: |
10.22055/jacm.2020.34192.2353 |
| Popis: |
In this paper, a new 8-node solid-shell finite element is proposed. The transverse shear strains and transverse normal strains of the element are separately interpolated and related to the C0-displacement approximation at tying points to overcome the shear- and trapezoidal-locking phenomena. From the bending strain approximation suggested for degenerated shell elements, the assumed bending strains for the solid-shell element are firstly established. The membrane strains of the element are smoothed on domains defined by dividing the middle surface's element into 1, 2, 3 or 4 sub-cells in accordance with the cell-based strain smoothing (CS) technique. The formulations of the membrane stiffness matrices are explicitly integrated on the boundary lines of the smoothing sub-cells. The proposed CSn-Q8 element, in which n is the number of smoothing sub-cells, is verified through static analysis of several benchmark plate and shell problems. Numerical results show the improved performance of the CSn-Q8 element in comparison with other references. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
