On the Ballistic Perforation Resistance of a Sandwich Structure with Aluminium Skins and Aluminium Foam Core

Børvik, Tore; Brekken, Kristoffer  A.; Bakk, Maria  S.; Dey, Sumita; Berstad, Torodd; Reyes, Aase

doi:10.2139/ssrn.4507909

Cited by 1 publication

(2 citation statements)

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“…The relationship between stress and strain for material in fiber, matrix, and shear directions in the elastic zone is given by Equation ( 13), (14), and (15), respectively: and c) pressure (an improved computational constitutive model for brittle materials. Reproduced with permission.…”

Section: Materials Modelsmentioning

confidence: 99%

“…This provides a valuable tool for designing and optimizing protective solutions that utilize sandwich structures. [14] On the other hand, Al 2 O 3 and SiC ceramics possess excellent mechanical properties, including outstanding impact resistance, making them ideal materials for building armor. SiC has high hardness and a good strength-to-density ratio, while Al 2 O 3 is less expensive compared to SiC ceramics.…”

Section: Introductionmentioning

confidence: 99%

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Finite Element Analysis of Ceramic–Composite Structures for Ballistic Applications: Effect of Ceramic Thickness and Cell Structure

Chairi,

El Bahaoui,

Hanafi

et al. 2023

Adv Eng Mater

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This study employs finite element simulation to conduct a numerical modeling of ceramic–composite structure armors. The numerical armor models consist of a ceramic plate and a composite backing plate. Alumina oxide and silicon carbide ceramic materials with two different cell structures are used: hexagonal and square cell structures, respectively. A Kevlar composite is used as the back plate. The ceramic plate's thickness is altered among 7, 8, and 9 mm to explore its influence on the ballistic performance of the armors. The damage fracture is compared with experimental results, and the ballistic resistance is further examined by determining the projectiles’ velocities at the conclusion of the simulation and the evolution of the average velocity during the impact period. The findings of the numerical modeling reveal that the ceramics sustain damage consistent with the experimental damage. However, as perforation is observed in every sample, the overall performance of the samples is deemed unsatisfactory.

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Section: Materials Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%