TY  - JOUR
T1  - Free Vibration Analysis of Foam-Core Sandwich Structures
TT  - Free Vibration Analysis of Foam-Core Sandwich Structures
AU  - Kösedağ, Ertan
AU  - Ekici, Recep
PY  - 2021
DA  - March
DO  - 10.2339/politeknik.571396
JF  - Politeknik Dergisi
PB  - Gazi University
WT  - DergiPark
SN  - 2147-9429
SP  - 69
EP  - 74
VL  - 24
IS  - 1
LA  - en
AB  - In thispaper, the free vibration analyses of aluminum-foam sandwich structures werecompleted numerically. Foam and aluminum (Al) were used for the core andsurface layers of the sandwich structure, respectively. In addition, anadhesive was used as a thin film. Natural frequencies and mode shapes of thesandwich structure were obtained for different thickness core and surfacematerials. For this, three different sandwich structures, different thicknessof the core with same surface layers and the same core thickness with differentsurface layers thickness, were modeled as SS1, SS2 and SS3. Analyses were performed by ABAQUS/Standardfinite element software. The increase in the thickness of the Al layergenerally caused a decrease in the frequency, but this decrease is not verydramatic. The increase in the thickness of the core has caused a seriousincrease in the frequency of the sandwich structure.
KW  - Foam-core
KW  - free vibration
KW  - natural frequencies
KW  - numeric analysis
KW  - sandwich structures
N2  - In this paper, the free vibration analyses of aluminum-foam sandwich structures were completed numerically. Foam and aluminum (Al) were used for the core and surface layers of the sandwich structure, respectively. In addition, an adhesive was used as a thin film. Natural frequencies and mode shapes of the sandwich structure were obtained for different thickness core and surface materials. For this, three different sandwich structures, different thickness of the core with same surface layers and the same core thickness with different surface layers thickness, were modeled as SS1, SS2 and SS3. Analyses were performed by ABAQUS/Standard finite element software. The increase in the thickness of the Al layer generally caused a decrease in the frequency, but this decrease is not very dramatic. The increase in the thickness of the core has caused a serious increase in the frequency of the sandwich structure.
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UR  - https://doi.org/10.2339/politeknik.571396
L1  - https://dergipark.org.tr/en/download/article-file/973828
ER  -