Ballistic impact performance of Kevlar-29 and Al2O3 powder/epoxy targets under high velocity impact

Fiber Metal Laminates (FML) are structures that contain a sequential arrangement of metal and composite materials, which are of great interest to the aerospace sector due to the superior mechanical performance. The traditional manufacturing process for FML involves considerable investment in manufacturing resources depending on the design complexity of the desired components. To mitigate such limitations, 3D printing enables direct digital manufacturing to create FML with customized configurations. In this work, a preliminary mechanical characterization of additively-manufacturing-enabled FML has been investigated. A series of continuous glass fiber-reinforced composites were printed with a Markforged system and placed between layers of aluminum alloy to manufacture hybrid laminate structures. The laminates were subjected to tensile, interfacial fracture toughness, and both low-velocity and high-velocity impact tests. The results showed that the FMLs appear to have a good degree of adhesion at the metal-composite interface, although a limited intralaminar performance was recorded. It was also observed that the low and high-velocity impact performance of the FMLs was improved by 9–13% relative to that of the constituent elements. The impact performance of the FML appeared to be related to the fiber fracture, out of plane perforation and interfacial delamination within the laminates. The present study can provide an initial research foundation for considering 3D printing in the production of hybrid laminates for static and dynamic applications.

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Study of the Impact Performance of Solder Joints by High-Velocity Impact Tests

Journal of Electronic Materials ◽

10.1007/s11664-010-1369-z ◽

2010 ◽

Vol 39 (12) ◽

pp. 2536-2543 ◽

Cited By ~ 7

Author(s):

Ning Zhang ◽

Yaowu Shi ◽

Fu Guo ◽

Fuqian Yang

Keyword(s):

High Velocity ◽

Solder Joints ◽

High Velocity Impact ◽

Velocity Impact ◽

Impact Performance ◽

Impact Tests ◽

The Impact

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Mechanical and high velocity impact performance of a hybrid long carbon/glass fiber/polypropylene thermoplastic composite

Iranian Polymer Journal ◽

10.1007/s13726-020-00794-9 ◽

2020 ◽

Vol 29 (4) ◽

pp. 301-307 ◽

Cited By ~ 2

Author(s):

Mohammad Shayan Asenjan ◽

Seyed Ali Reza Sabet ◽

Mehdi Nekoomanesh

Keyword(s):

Glass Fiber ◽

High Velocity ◽

Thermoplastic Composite ◽

High Velocity Impact ◽

Velocity Impact ◽

Impact Performance

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EXPERIMENTAL INVESTIGATION OF HIGH VELOCITY IMPACT ON CNT REINFORCED COMPOSITES EMPLOYING SINGLE STAGE GAS GUN

10.12783/asc36/35801 ◽

2021 ◽

Author(s):

D. MUNIRAJ ◽

S. MUGHILARASAN ◽

V. M. SREEHARI

Keyword(s):

High Velocity ◽

Composite Plate ◽

Epoxy Composite ◽

Impact Load ◽

Single Stage ◽

High Velocity Impact ◽

Velocity Impact ◽

Weight Percentage ◽

Impact Performance ◽

Gas Gun

Composite plays a significant role in the field of aerospace due to its excellent mechanical properties, nevertheless, they are highly susceptible to out-of-plane impact load. Fibre-reinforced composite fails effortlessly under impact load and absorb energy through damage mechanics rather than deformation. The present study investigates the damage behaviour of the CNT reinforced carbon fibre-epoxy composite under high velocity impact using single stage gas gun. Composite plates were fabricated with 0 to 0.6 weight percentage content of CNT as reinforcement using vacuum assisted resin transfer moulding. A series of impact test with various impact energy was carried out on carbon/epoxy composite plate to study the impact performance. From the experimentation it was observed that the 0.3 weight percentage CNT addition provides the optimum impact performance. Damage characterization was performed for various impact velocity based on the micro and macro scale damage area. Knowledge of the damage behaviour of CNT reinforced carbon fibreepoxy composite plate under high velocity impact loads is essential for both the product development and material selection in the aerospace application.

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The Impact Performance of Woven-Fabric Thermoplastic and Thermoset Composites Subjected to High-Velocity Soft- and Hard-Impact Loading

Applied Composite Materials ◽

10.1007/s10443-019-09786-2 ◽

2019 ◽

Vol 26 (5-6) ◽

pp. 1389-1410 ◽

Cited By ~ 8

Author(s):

Jun Liu ◽

Haibao Liu ◽

Cihan Kaboglu ◽

Xiangshao Kong ◽

Yuzhe Ding ◽

...

Keyword(s):

Carbon Fibre ◽

Impact Loading ◽

High Velocity ◽

Image Correlation ◽

Woven Fabric ◽

High Velocity Impact ◽

Velocity Impact ◽

Impact Performance ◽

The Impact ◽

Carbon Fibre Composites

Abstract The present paper investigates the impact performance of woven-fabric carbon-fibre composites based upon both thermoplastic- and thermoset-matrix polymers under high-velocity impact loading by conducting gas-gun experiments at impact velocities of up to 100 m.s−1. The carbon-fibre reinforced-polymers (CFRPs) are impacted using soft- (i.e. gelatine) and hard- (i.e. aluminium-alloy) projectiles to simulate either a soft bird-strike or a hard foreign-body impact (e.g. runway debris), respectively, on typical composites employed in civil aircraft. The out-of-plane displacements of the impacted composite specimen are obtained by means of a three-dimensional Digital Image Correlation (DIC) system for the soft-projectile impact on the composites and the extent of damage is assessed both visually and by using portable C-scan equipment. The perforation resistance and energy absorbing capability of the composites are also studied by performing high-velocity impact experiments using the hard-projectile and the resulting extent and type of damage are identified. In addition, a Finite Element (FE) model is also developed to investigate the interaction between the projectile and the composite target.

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High velocity impact properties of composites reinforced by stitched and unstitched glass woven fabrics

Journal of Industrial Textiles ◽

10.1177/1528083721999865 ◽

2021 ◽

pp. 152808372199986

Author(s):

Zeynab Behroozi ◽

Hooshang Nosraty ◽

Majid Tehrani

Keyword(s):

High Velocity ◽

Woven Fabrics ◽

Ballistic Impact ◽

Woven Fabric ◽

Impact Behavior ◽

Stacking Sequence ◽

High Velocity Impact ◽

Velocity Impact ◽

Damage Area ◽

Properties Of Composites

The present research aimed to investigate the effect of stitching angle and stacking sequence of stitched layers on high velocity impact behavior of composites reinforced by glass woven fabrics. To study the effect of stitching angle on ballistic impact behavior, six different angles of (0°), (90°), (45°), (0°,90°), (±45°) and (0°,90°,±45°) were chosen as stitching angles. These stitching angles were applied on eight layers of glass woven fabric. To study the effect of stacking sequence of stitched layers, a different number of layers were stitched together with the angle of 0°. Unstitched and stitched composites were exposed to high velocity impact with 180 m/s using a spherical projectile. The residual velocity of projectile and dimensions of damage area on the composites’ front and back sides were measured. It was found that the sample with the 45° stitching angle had the best behavior against ballistic impact and its energy absorption was significantly higher than the other samples. Stitching also reduces damage area in front and back sides of the composites and inhibits delamination.

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