PSI - Issue 64

Luca Belluomo et al. / Procedia Structural Integrity 64 (2024) 2197–2205 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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5. Results 5.1. Structure obtained for the Bronze Axe

Considering ABS material (which can be also additive manufactured) and the minimization of the supports masses using a safety factor X=2 for them, for what concerns the applied load, Fig. 8 reports the results for unconstrained (left) and additive manufacturing along positive z axis manufacturing constraint for the support of the bronze axe. Both the supports weigh about 41g and achieve a safety factor of nearly Y=31 in relation to the yield stress of the material, that means the obtainment of a maximum stress 31 times lower than the yield stress.

Fig. 8. Obtained supports for the bronze axe: (a) the manufacturing unconstrained one with the input constraints; (b) the additive manufacturing along positive Z axis constrained one with the input constraints; views of the unconstrained support, in blue (left-front view (c), right-back view (d), assembled with the axe (e)). 5.2. Structure obtained for the Aryballos Considering ABS material and the minimization of mass with a safety factor X=2, as in the previous case, Fig. 9 reports the results for unconstrained (left) and additive manufacturing along positive z axis manufacturing constraint for the support of the metallic hoe. Both the support weights 22g and achieved a safety factor of nearly Y=111 in relation to the yield stress of the material.

Fig. 9. Obtained supports for the aryballos: (a) the manufacturing unconstrained one with the input constraints; (b) the additive manufacturing along positive Z axis constrained one with the input constraints; views of the unconstrained support, in blue (left-front view (c), right-back view (d), assembled with the aryballos (e)).