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. 2021 Mar 18;14(6):1502.
doi: 10.3390/ma14061502.

Mechanical Vibration Damping and Compression Properties of a Lattice Structure

Katarina Monkova  1   2 , Martin Vasina  2   3 , Milan Zaludek  2 , Peter Pavol Monka  1   2 , Jozef Tkac  1
Affiliations

Mechanical Vibration Damping and Compression Properties of a Lattice Structure

Katarina Monkova et al. Materials (Basel). .

Abstract

The development of additive technology has made it possible to produce metamaterials with a regularly recurring structure, the properties of which can be controlled, predicted, and purposefully implemented into the core of components used in various industries. Therefore, knowing the properties and behavior of these structures is a very important aspect in their application in real practice from the aspects of safety and operational reliability. This article deals with the effect of cell size and volume ratio of a body-centered cubic (BCC) lattice structure made from Acrylonitrile Butadiene Styrene (ABS) plastic on mechanical vibration damping and compression properties. The samples were produced in three sizes of a basic cell and three volume ratios by the fused deposition modeling (FDM) technique. Vibration damping properties of the tested 3D-printed ABS samples were investigated under harmonic excitation at three employed inertial masses. The metamaterial behavior and response under compressive loading were studied under a uniaxial full range (up to failure) quasi-static compression test. Based on the experimental data, a correlation between the investigated ABS samples' stiffness evaluated through both compressive stress and mechanical vibration damping can be found.

Keywords: 3D printing; Acrylonitrile Butadiene Styrene; compression behavior; displacement transmissibility; excitation frequency; mechanical vibration.

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Conflict of interest statement

The authors declare that they have no conflicts of interest.

Figures

Figure 1
Figure 1
Lattice structure: (a) basic body-centered cubic (BCC) cell and (b) virtual model of the lattice sample.
Figure 2
Figure 2
3D models and produced samples with the cell size a = 5 mm and all three volume ratios Vr = 25%, 45%, and 70%.
Figure 3
Figure 3
The 3D printer uPrint SE (left) and two views of the sample in the printing process (right).
Figure 4
Figure 4
Schematic diagram of the experimental setup for measuring the displacement transmissibility of a linear single-degree-of-freedom system.
Figure 5
Figure 5
A view of a sample during the process of a compression test.
Figure 6
Figure 6
Influence of the sample volume ratio on the displacement transmissibility: (a) cell size a = 7 mm, inertial mass mi = 90 g; (b) cell size a = 10 mm, inertial mass mi = 0 g.
Figure 7
Figure 7
Influence of the inertial mass on the displacement transmissibility: (a) cell size a = 5 mm, volume ratio Vr = 25%; (b) cell size a = 10 mm, volume ratio Vr = 70%.
Figure 8
Figure 8
Influence of the material thickness on the displacement transmissibility: (a) inertial mass mi = 90 g, volume ratio Vr = 45%; (b) inertial mass mi = 0 g, volume ratio Vr = 70%.
Figure 9
Figure 9
Engineering dependences: (a) load vs. displacement of the samples with a = 5 mm and Vr = 25%, 45%, and 70%; (b) stress vs. strain curve of the sample with a = 5 mm and Vr = 25% with regions I. almost linear elastic region, II. constant plateau region, and III. densification area.
Figure 10
Figure 10
Dependencies of ultimate strength limit on volume ratio Vr.
Figure 11
Figure 11
Crack propagation at the lattice structures: (a) a = 5 mm and Vr = 25%; (b) a = 7 mm and Vr = 70%.
Figure 12
Figure 12
The dependency of relative strength carried by 1 cm3 of the consumed Acrylonitrile Butadiene Styrene (ABS) filament on the cell size a and the volume ratio Vr.
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References

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