Ballistic Impact Testing of Aluminum 2024 and Titanium 6Al-4V for Material Model Development

Pereira, J. Michael; Revilock, Duane M.; Ruggeri, Charles R.; Emmerling, William; Altobelli, Donald J.

doi:10.1061/(asce)as.1943-5525.0000356

Cited by 11 publications

(3 citation statements)

References 3 publications

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“…Besides gelatin projectiles, a more appropriate impactor for simulating a fractured engine rotor blade is a metallic plate projectile, such as a titanium alloy blade-like projectile [28][29][30][31][32] when investigating the impact resistance of candidate materials for an engine casing. Our previous studies involved blade-containment tests using a high-speed rotor spin tester to investigate the containment and failure mechanisms of a composite casing [33].…”

Section: Introductionmentioning

confidence: 99%

The Influences of Projectile Material and Environmental Temperature on the High Velocity Impact Behavior of Triaxial Braided Composites

et al. 2021

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Two-dimensional (2D) triaxial braided composites with braiding angle (± 60°/0°) have been used as aero-engine containing casing material. In the current paper, three types of projectile with the same mass and equivalent diameter, including cylinder gelatin projectile, carbon fiber-reinforced plastics (CFRP), and titanium alloy blade-like projectile, were employed to impact on triaxial braided composites panels with thickness of 4.3 mm at room temperature (20 °C) to figure out the influences of projectile materials on the damage pattern and energy absorption behavior. Furthermore, the influences of environmental temperature were also discussed considering the aviation service condition by conducting ballistic impact tests using CFRP projectile at cryogenic temperature (−50 °C) and high temperature (150 °C). The triaxial braided target panel were pre-heated or cooled in a low-temperature chamber before mounted. It is found that soft gelatin project mainly causes global deformation of the target and therefore absorb much more energy. The triaxial braided composite absorb 77.59% more energy when impacted with CFRP projectile than that with titanium alloy projectile, which mainly results in shear fracture. The environmental temperature has influences on the damage pattern and energy absorption of triaxial braided composites. The cryogenic temperature deteriorates the impact resistance of the triaxial braided composite material with matrix cracking damage pattern, while high temperature condition improves its impact resistance with shearing fracture damage pattern.

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Section: Introductionmentioning

confidence: 99%

The Influences of Projectile Material and Environmental Temperature on the High Velocity Impact Behavior of Triaxial Braided Composites

et al. 2021

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“…At present, scholars have researched into the mechanical properties of Ti-Al 3 Ti laminated composites, including: three-point bending [7,8], quasi-static compression [9,10], and anti-penetration performance [11][12][13][14][15][16][17], etc. Adharapurapu [18] et al, reported that the toughness and fatigue properties of Ti-Al 3 Ti laminated composites were improved obviously due to the bridging effect of ductile titanium.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Mechanical Properties of Ti–Al3Ti–Al Laminated Composites: Experimental and Numerical Investigation

Yuan

Zheng

et al. 2021

Metals

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The Ti–Al3Ti–Al laminated composites with different Al contents were prepared by vacuum hot pressing sintering technology. The effects of Al content on the dynamic mechanical properties of the composites were studied using the combination of Split Hopkinson Pressure Bar experiment and finite element analysis. The results showed that different Al content changes the fracture mode of the composites. The laminated composites without Al have higher brittleness and lower fracture strain. The Ti–Al3Ti–Al laminated composites containing 10–15%Al have better dynamic mechanical properties than those without Al, but the subsequent increase of Al content is not conducive to the improvement of strength. However, when the Al content in the specimen reaches 30%, the dynamic mechanical properties of the composites decrease, multi-crack phenomenon and relatively large strain occur, and the Al extruded from the layers fills the crack.

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“…Ballistic performance. The ballistic impact response of the aerogel blocks was studied by means of a helium-filled gas gun connected to a vacuum chamber 34 . Figure 7A shows the schematic of the experimental setup.…”

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confidence: 99%

Polyimide aerogels for ballistic impact protection

Malakooti

Vivod

Pereira

et al. 2022

Sci Rep

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The ballistic performance of edge-clamped monolithic polyimide aerogel blocks (12 mm thickness) has been studied through a series of impact tests using a helium-filled gas gun connected to a vacuum chamber and a spherical steel projectile (approximately 3 mm diameter) with an impact velocity range of 150–1300 m s−1. The aerogels had an average bulk density of 0.17 g cm−3 with high porosity of approximately 88%. The ballistic limit velocity of the aerogels was estimated to be in the range of 175–179 m s−1. Moreover, the aerogels showed a robust ballistic energy absorption performance (e.g., at the impact velocity of 1283 m s−1 at least 18% of the impact energy was absorbed). At low impact velocities, the aerogels failed by ductile hole enlargement followed by a tensile failure. By contrast, at high impact velocities, the aerogels failed through an adiabatic shearing process. Given the substantially robust ballistic performance, the polyimide aerogels have a potential to combat multiple constraints such as cost, weight, and volume restrictions in aeronautical and aerospace applications with high blast resistance and ballistic performance requirements such as in stuffed Whipple shields for orbital debris containment application.

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Ballistic Impact Testing of Aluminum 2024 and Titanium 6Al-4V for Material Model Development

Cited by 11 publications

References 3 publications

The Influences of Projectile Material and Environmental Temperature on the High Velocity Impact Behavior of Triaxial Braided Composites

The Influences of Projectile Material and Environmental Temperature on the High Velocity Impact Behavior of Triaxial Braided Composites

Dynamic Mechanical Properties of Ti–Al3Ti–Al Laminated Composites: Experimental and Numerical Investigation

Polyimide aerogels for ballistic impact protection

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