Influence of Boundary Conditions on the Simulation of a Diamond-Type Lattice Structure: A Preliminary Study

Table 1

Results of the mesh convergence analysis.

Element size (mm)	1.6	0.8	0.4	0.2	0.1	0.05
d/e ratio	1	2	4	8	16	32
Number of nodes	973	3,060	6,868	36,995	247,630	1,864,686
Max disp. (μm)	2.000	2.106 (5.0%)	2.145 (1.8%)	2.179 (1.6%)	2.196 (0.8%)	2.215 (0.9%)
Max stress (MPa)	431.9	526.5 (18.0%)	600.6 (12.3%)	827.3 (27.4%)	985.2 (16.0%)	1379 (28.5%)
Strain energy (J)	0.9370	0.9341 (0.3%)	0.9234 (1.2%)	0.9116 (1.3%)	0.9064 (0.6%)	0.9056 (0.1%)