Drop Test Resistance on Ramie Fiber Bulletproof Panels Based on Harvest Time and Fiber Treatment of Ramie

Nurhadiyanto, Didik; Mujiyono,; Mukhammad, Alaya Fadllu Hadi; Setyoko, M. B.; Yahya, Mohd Yazid; Riyadi, Tri Widodo Besar

doi:10.1615/compmechcomputapplintj.2020035788

Cited by 5 publications

(3 citation statements)

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“…The paper [5] shown that ramie fibers are one of natural fibers with excellent mechanical properties, such as having a density of about 1.30-1.45 g/cm 3 which made ramie fiber a lightweight material, furthermore the paper [6] showed that tensile strength range between 400 to 1620 MPa, Young Modulus 61-128 GPa. The paper [7] shown the decortication treatment without water is the best treatment to produce droptest strength, and Energy absorbed per effective linear thickness also increases significantly with the rising thickness and bulletproof panel density. Furthermore, the paper [8] has shown that ramie woven fiber reinforced bulletproof panel able to endure penetration of projectile with 380 m/s impact velocity in ballistic test.…”

Section: Literature Review and Problem Statementmentioning

confidence: 96%

Determination of the ballistic performance ramie-fiber-reinforced epoxy composite-sic ceramic in multilayered armor system

Mukhammad

Rusnaldy

Ismail

et al. 2023

EEJET

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Multilayered Armor System (MAS) is being extensively studied around the world for its ability to retain ceramic fragmentation after a collision occurs. MAS consist of a ceramic layer placed at the front and supported by a composite layer of ramie-fiber-reinforced epoxy resin. Present study utilizes natural fibers of 50 % ramie fibers with epoxy resin as the matrix and Silicon Carbide (SiC) ceramic as the front panel. The ballistic testing in this study used 7.62×51 mm NATO Ball projectile with a firing distance of 15 m from the bullet panel. The velocity of projectile was detected using LIGHT SCREEN B471 type. The aim of the study is to conclude the optimal thickness of ramie fiber-epoxy and SiC ceramics MAS structure based on experiments which can withstand 7.62 NATO ball bullet penetration. To achieve this aim, the following objectives are accomplished: study the effect of SiC ceramic addition to ramie composite on BFS and study the effect of SiC ceramic addition to ramie composite on failure mode. Results show that the addition of the number of layers of SiC increases resistance of ballistic MAS marked by a decrease in the value of BFS clay. The 5SiC+10R is the optimal thickness in resisting the penetration of 7.62×51 mm bullets with 12 mm BFS clay. Failure phenomena found in this study were projectile fragments, matrix cracks, radial cracks, impact points, and ceramic fragments. Matrix crack formation appears on 5SiC+10R with mini deformation in rear side. Phenomenon of ceramic fragmentation in the shot causes the MAS structure to be damaged, so that the ramie fiber composite layer will face the bullet directly if it is subjected to a second shot. Ultra High Hardness Armor (UHHA) as first layer on the MAS structure is an attractive option for further research.

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Section: Literature Review and Problem Statementmentioning

confidence: 96%

Determination of the ballistic performance ramie-fiber-reinforced epoxy composite-sic ceramic in multilayered armor system

Mukhammad

Rusnaldy

Ismail

et al. 2023

EEJET

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“…Building materials engineering that is cheap, easy and fast is needed to support buildings in military installations such as guard posts/border posts/security posts because the condition of these buildings does not yet reflect defense installation buildings because they serve as signs and guard places so they are made to simply protect against the weather, heat, rain and wind, not yet considered as a building of defense architecture (not paying attention to security and defense factors) [9]. Testing fiber material by firing test with bullets aims to obtain materials that are able to reduce or stop the rate of movement of bullets [10]. The addition of textile fabric waste from PDL military uniforms is predicted to function as fiber concrete which binds concrete cracks when subjected to pressure or bullet shots.…”

Section: Introductionmentioning

confidence: 99%

Utilization Of PDL Cadet Clothing Waste As An Admixture For The Manufacture Of Fiber Concrete To Support Defense Architecture Building

Prapsetyo,

Ahmad,

Yanto

et al. 2024

Proceedings of the 11th International Applied Business and Engineering Conference, ABEC 2023, September 21st, 2023, Bengkalis,

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Military service clothing waste, especially PDL (Field Service Clothing) for Military Academy Cadets reaches more than 5,000 sets of waste every year. This condition allows the misuse of waste to be used for crimes in the name of the TNI. Material design by utilizing this waste as a concrete mixture is one solution. Fiber concrete is concrete with added fiber to obtain a higher tensile strength. The aim of the research is to obtain building materials in the form of textile fiber concrete from military uniforms (PDL clothes) which can be implemented as building materials. Quantitative research method using an experimental approach, namely by making fiber concrete with a mixture composition: cement: sand: gravel: fabric residue PDL = 1: 2: 3: 1 and testing the hardness of the concrete using a hammer tester and shooting test with an SS-gun. 2 (Assault Rifle version 2) 5.56 mm rounds and SP-2. gun (Rifle Long version 2) with 7.62 mm rounds fired at 50 m and 100 m. The results showed that PDL fabric fiber concrete is less easily damaged than standard concrete, so it can be used as a building material for defense architecture, such as guard posts and border guard houses.

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“…Protection against projectile shrapnel from firearms is a matter of personal safety protection, especially for law enforcement or military officers. Protection against high-velocity projectiles, like 7.62 mm caliber projectile, depends on the use of steel or ceramic plate material as personal protection [1].…”

Section: Introductionmentioning

confidence: 99%

Damage formations of ramie fiber composites multilayer armour system under high-velocity impacts

Mujiyono

Nurhadiyanto

Mukhammad

et al. 2023

EEJET

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Multilayer armour system (MAS) becomes the best choice in reinforcing protection for military officers against projectile attack which has a high velocity of up to 7.62×51 mm NATO ball lead core (projectile level III NIJ standard) or AP 7.62×51 mm hard steel core (projectile level IV NIJ standard). This study aimed to analyze the damage formation of wolfram carbide (WC) ceramic and ramie fiber composites. The frontmost MAS uses WC ceramic and is enveloped by a back layer of ramie fiber composites with epoxy resin reinforcing material as the matrix. Ballistic testing was carried out in this study using a long-barreled rifle to determine the resistance of the MAS from projectile impact. The speed meter in ballistic testing uses a velocity sensor type light screen B 471 and clay witness is used to measure back face signature (BFS). The results show that 7.62 lead core and hard steel core projectiles were unable to penetrate the 3-layer ceramic MAS in the front. The results are marked by a relatively low BFS value of 1.45 and 1.17 mm, so that the energy in the MAS with 3 ceramic layer is absorbed efficiently but with the phenomenon of rupture ceramic failure. Ceramic rupture failure needs to be overcome by bonding several layers of ramie so that MAS can be used in the next stage. MAS with 1 and 2 ceramic layers are unable to withstand projectile level III and level IV NIJ standard. From these results it is known that the MAS limit can withstand the projectile level III and IV NIJ standard, namely MAS with 3 ceramic layers. The damage formation of ceramic was rupturing ceramic failure. Therefore, it is necessary to design a ceramic binder by placing some ramie fibers in front of the ceramic

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Drop Test Resistance on Ramie Fiber Bulletproof Panels Based on Harvest Time and Fiber Treatment of Ramie

Cited by 5 publications

References 0 publications

Determination of the ballistic performance ramie-fiber-reinforced epoxy composite-sic ceramic in multilayered armor system

Determination of the ballistic performance ramie-fiber-reinforced epoxy composite-sic ceramic in multilayered armor system

Utilization Of PDL Cadet Clothing Waste As An Admixture For The Manufacture Of Fiber Concrete To Support Defense Architecture Building

Damage formations of ramie fiber composites multilayer armour system under high-velocity impacts

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