PSI - Issue 79

Petru Mihai Margitas et al. / Procedia Structural Integrity 79 (2026) 348–353

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3. Results Typical load – displacement curves for the investigated lattices are shown in Fig. 3 together with captions from the recordings for different load stages (initial, and elastic domain, at maximum load, post maximum load). a 900

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Fig. 3 Load – displacement curves for lattice structures: (a) square, (b) triangle, (c) sponge-like

For the square lattice an elastic buckling was observed in the elastic domain, then the faces of the lattice started to bend and finally fracture occurred in the second row of cells starting from the bottom, Fig. 3.a. The triangle structure suffered a local buckling which started at the edge of the structure and then the struts of the structure failed due to a