Page 437 - IJB-9-6

International Journal of Bioprinting Versatile pomelo peel-inspired structures

Figure 13. Fluid velocities contours of BPPSs on an X–Y plane at Re = 13,400 with airflow in the Y direction. (A) Schematic of an X–Y plane. Fluid velocities
contours of (B) BPPS-45%, (C) BPPS-40%, (D) BPPS-35%, and (E) BPPS-30% on an X–Y plane at Re = 13,400.

melted powder particles. Moreover, various cooling shear band was formed in BPPS-45%, while BPPS-
conditions induced by the different overhanging 40% displayed two flatter 15° shear bands compared
length and inclination angle, in combination with with the 35° and 40° shear bands in BPPS-35%.
the effects of gravity and surface tension, contributed Stress concentration appeared in the lower half part
to dross formation with diverse volumes. with low density in BPPSs owing to the gradient
characteristics of BPPSs, resulting in the layer-by-
(ii) The BPPS-45% exhibited the best mechanical layer fracture and ultimately enhancing the energy
properties with compressive strength, W , and s s absorption performance. At the same VF, the W
s
s
-3
of 63.47 MPa, 34.84 J/g, and 142.16 MPa/(g·cm ), of BPPSs was significantly higher than that of
respectively. During compression deformation, no aluminum alloy structures that have been studied.
Volume 9 Issue 6 (2023) 429 https://doi.org/10.36922/ijb.1011