2 results listed
The finite element method (FEM) is a computational
technique that is often used to solve biomedical engineering
problems. The biphasic cartilage model plays important role in
representing the mechanical behaviour of the articular cartilage .
In order to obtain accurate results in finite element analysis of
articular cartilage, it is necessary to determine appropriate FEM
parameters such as mesh density and finite element type. Mode l s
with small element sizes in the FEM allow more accurate re sul ts
to be obtained however it requires longer calculation time. In
contrast, large element size can lead to non-precision results
while shortening the calculation time. The type of the elements
may also change the results of FEM analysis for biomechanical
problems. The purpose of this study is; to evaluate the effect of
the mesh size and type of the finite element on the resul ts of the
numerical biphasic tissues. In this study, in order to achieve thi s
goal a series of compression analyzes were performed on the 3D
biomedical models with different mesh density and element types
using ABAQUS 6.13 software and the results were compared.
The analysis results showed that mesh density element type and
element type had little effect on the maximum reaction force . On
the contrary, the mesh density had greatly increased the
computational time.
International Conference on Advanced Technologies, Computer Engineering and Science
ICATCES
Sabri Uzuner
E. ZURNACI
M.L. Rodriguez
Serdar Kucuk
Sandwich panels have been widely used in several fields due to their mechanical properties. In this research, the effect of core edge curvature of sandwich panels on their impact performance was examined. In this regard, sandwich panels were modelled for seven different radius of edge curvature (0,5:1:1,5:2:2,5:3:3,5 mm). Al 2024 was used as the face-sheet and core material. Quasi-static impact analysis was carried out using Abaqus finite elements software at 1 m/s test speed and under 8 tons test load. Analysis results revealed that, the use of different edge curvature values affected the mechanical properties such as the amount of absorbed impact energy, maximum peak force and the average crushing force. In conclusion, the amount of absorbed energy increased and the peak force decreased with increasing radius of edge curvature. On the other hand, sandwich panel’s resistance against vertical loads was reduced when the change in curvature resulted in a reduction in the length of the core wall by more than 50%.
International Conference of Advanced Materials and Manufacturing Technologies
ICAMT
E. ZURNACI
Hasan GÖKKAYA