- Tytuł:
- Free vibration analysis of sandwich beam with porous FGM core in thermal environment using mesh-free approach
- Autorzy:
-
Hung, Tran Quang
Tu, Tran Minh
Duc, Do Minh - Powiązania:
- https://bibliotekanauki.pl/articles/27309844.pdf
- Data publikacji:
- 2022
- Wydawca:
- Polska Akademia Nauk. Czasopisma i Monografie PAN
- Tematy:
-
thermal vibration
mesh-free method
sandwich beam
porous materials
wibracje termiczne
metoda bezsiatkowa
belka kanapkowa
materiały porowate - Opis:
- Thermally induced free vibration of sandwich beams with porous functionally graded material core embedded between two isotropic face sheets is investigated in this paper. The core, in which the porosity phase is evenly or unevenly distributed,has mechanical properties varying continuously along with the thickness according to the power-law distribution. Effects of shear deformation on the vibration behavior are taken into account based on both third-order and quasi-3D beam theories. Three typical temperature distributions, which are uniform, linear, and nonlinear temperature rises, are supposed. A mesh-free approach based on point interpolation technique and polynomial basis is utilized to solve the governing equations of motion. Examples for specific cases are given, and their results are compared with predictions available in the literature to validate the approach. Comprehensive studies are carried out to examine the effects of the beam theories, porosity distributions, porosity volume fraction, temperature rises, temperature change, span-to-height ratio, different boundary conditions, layer thickness ratio, volume fraction index on the vibration characteristics of the beam.
- Źródło:
-
Archive of Mechanical Engineering; 2022, LXIX, 3; 471--496
0004-0738 - Pojawia się w:
- Archive of Mechanical Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł