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Proceedings of the International Conference on Digital Manufacturing –
Volume 2
Honeycomb (TRI HC) lattice structure showed good structural
stability and overall mechanical property balance. We concluded
that TRI HC, being 70% porous and light in weight, has good
mechanical strength. This is because the underlying structural
strength of Triangular Honeycomb Lattices makes its struts
effectively distribute the loads on both the upper and lower
surfaces of the beam.
In conclusion, the TRI HC lattice structure has a good
combination of mechanical properties (Shah & Kapania, 2020)
such as a balanced strength and weight, and linear deformation
behaviour. Although it might not possess the lowest absolute
stress value, its overall performance indicates that it is a good
candidate for application in lightweight structural purposes. The
gyroid lattice also holds potential because it has a consistent stress
distribution and energy absorption. More studies may investigate
the long-term behaviour of these structures when subjected to
cyclic loading and determine the influence of various material
pairs.
REFERENCES
Chopra, P. (2011). Effective mechanical properties of lattice
materials. University of British Columbia.
Dong, Z., & Zhao, X. (2021). Application of TPMS structure in
bone regeneration. Engineered Regeneration, 2, 154–162.
Garcia-Granada, A., Catafal-Pedragosa, J., & Lemu, H. G. (2019).
Topology optimisation through stiffness/weight ratio
analysis for a three-point bending test of additive
manufactured parts. In IOP Conference Series: Materials
Science and Engineering. IOP Publishing.
Giglio, M., Gilioli, A., & Manes, A. (2012). Numerical
investigation of a three point bending test on sandwich panels
with aluminium skins and Nomex™ honeycomb core.
Computational Materials Science, 56, 69–78.
He, M., & Hu, W. (2008). A study on composite honeycomb
sandwich panel structure. Materials & Design, 29(3), 709–
713.
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