Friction Modeling in Simulating Ballistic Impact. A Review

Ojoc, George Ghiocel; Pîrvu, Cristian; Badea, Simona; Deleanu, Lorena

doi:10.24874/pes01.01.021

Cited by 1 publication

(1 citation statement)

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“…To determine the fracture locus, a maximum equivalent plastic-strain-based criterion was used [ 21 ]. Moreover, friction was also considered in the interaction between the projectile and the plate by setting the dynamic friction coefficient to 0.3 [ 22 ]. The resulting mesh of the system consisted of a structured grid made of 80,000 linear hexahedral elements, as shown in Figure 6 .…”

Section: Methodsmentioning

confidence: 99%

Quasi-Static Penetration Properties of 3D-Printed Composite Plates

Baruscotti,

Borgianni,

Concli

2024

Materials

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This work investigated the impact and piercing load resistance (energy absorption capabilities) of 3D-printed composites plates manufactured by means of the Fused-Filament-Fabrication (FFF) technique. Two sets of reinforced composite plates were produced. The first set of plates was printed with short-carbon-fiber-reinforced polyamide-12, while the second set was reinforced with continuous fibers. The plates were tested with quasi-static indentation tests at various Span-to-Punch ratios and with three different indenter nose shapes (blunt, hemispherical, and conical). The quasi-static measurements were subsequently elaborated to estimate the energy absorption capability of the plates during a ballistic impact. The addition of continuous fibers increased the quasi-static energy absorption capability by 20–185% with respect to the short-fiber-reinforced plates. The quasi-static results showed that by including the continuous reinforcement in the plates, the normalized energy absorbed increased by an order of magnitude. Finally, a comparison with data from the literature concerning continuous-reinforced composite plates manufactured by means of traditional techniques was carried out. The comparison revealed that FFF-printed composite plates can compete with traditional composite ones in terms of both ballistic and quasi-static penetrating load conditions, even if limited by the lower fiber volume fraction. Thus, these findings confirm that this novel Additive Manufacturing technique is promising and worth investigating further.

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Section: Methodsmentioning

confidence: 99%