Stab Resistant Analysis of Body Armour Design Features Manufactured via Fused Deposition Modelling Process

Maidin, Shajahan; Chong, See Ying; Heing, Ting Kung; Abdullah, Zulkeflee; Alkahari, Mohd Rizal

doi:10.5772/intechopen.86439

Cited by 5 publications

(4 citation statements)

References 13 publications

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“…Besides, the authors report that polycarbonate (PC) and tough PLA (TPLA) were found most suitable for stab resistance, necessitating structures of only 5 mm thickness. Similar results were reported by Maidin et al who used FDM printing of ABS and PC-ABS samples which were tested according to HOSDB KR1-E1 with an impact energy of 24 J, and fractured samples were found in many cases, where PC-ABS showed higher stab resistance than ABS, and an optimum thickness of 8.0 mm was defined [ 46 ].…”

Section: 3d Printed Polymer-based Body Armorsupporting

confidence: 79%

Stab-Resistant Polymers—Recent Developments in Materials and Structures

Panneke

Ehrmann

2023

Polymers

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Stab-resistant garments have been used for centuries, utilizing metals, paper, or polymeric structures, often inspired by natural structures such as scales. Nowadays, stab-resistant vests or vest inserts are used by police and security personnel, but also by bus drivers, ambulance officers, and other people who are empirically often attacked on duty. Since stab protection garments are often heavy and thus uncomfortable and not well accepted, whether in the form of chain-mail or metal inserts in protective vests, researchers are striving to find lightweight, drapable alternatives, often based on polymeric materials. These research attempts have recently focused on textile fabrics, mostly with impregnation by shear-thickening fluids (STFs) or ceramic coatings, as well as on lightweight composites. The first studies on 3D printed polymeric objects with tailored shapes, as well as theoretical investigations of the stab-protective effect of different materials, have been published throughout the last years. Here, we discuss different measurement methods, including dynamic and quasistatic methods, and correlations of stab-resistance with other physical properties, before we give an overview of recent developments of stab-resistant polymers, using different materials/material combinations and structures.

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Section: 3d Printed Polymer-based Body Armorsupporting

confidence: 79%

Stab-Resistant Polymers—Recent Developments in Materials and Structures

Panneke

Ehrmann

2023

Polymers

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“…Proposed solutions for stab protection include panels inspired by animal protection [3][4][5][6][7][8][9], either in the form of whole boards [10], profiled, or panels made of scale-like components [11][12][13], eggshells [14], or pads [15][16][17], their production being possible even by additive manufacturing [18][19][20]. Research has also been reported on vests with fluids that change their viscosity under impact, consuming a substantial part of the impact energy [14,[21][22][23].…”

Section: Introductionmentioning

confidence: 99%

The Behaviour of Stratified Fabrics of Aramid Fibres under Stabbing Conditions

Deleanu,

Totolici Rusu,

Ojoc

et al. 2024

Polymers

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This paper presents research on several factors influencing the stabbing behaviour of stratified panels made of aramid fabric Twaron® SRM509 Teijin Aramid BV (Arnhem, The Netherlands). The inputs in the test campaign were the number of layers, the impact energy, and the sample size. Tests were performed on small samples (130 mm × 130 mm) on an Instron® CEAST 9350 drop-tower impact system (Norwood, MA, USA) and on larger samples (400 mm × 400 mm) using a test installation with the same values of the impact energy. Knife type S1 was used, with the geometry recommended in NIJ Standard 0115.00 Stab Resistance of Body Armor SEM, and macro photography investigations revealed the failure mechanisms of panel, layers and fibres. A very important conclusion of this study regarding the stabbing performance of fabric Twaron® SRM 509 in particular, but also in general for panels for body protection is that a research study could start on small size samples, with an accurately instrumented machine, in order to establish the influence of significant factors of stab resistance (energy level, number of layers in a panel, etc.), as these samples are less expensive and less time consuming, but the study should be continued to examine larger size samples. The obtained data are useful for the prototype.

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“…The dual-layered imbricated assembly arranged at a 14.3° assembly angle effectively reduces penetration depth (Johnson et al , 2017). However, most scales need to design additional link structures during assembly, and then tilt to form imbricated structures (Maidin et al , 2019). This increases the overall thickness of the material and the area of weak joints.…”

Section: Introductionmentioning

confidence: 99%

Study on the mechanism and performance of 3D-printed PLA/epoxy composite for stab resistance

Du,

Chen,

Wang

2023

RPJ

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Purpose Stab-resistant body armor (SRBA) is used to protect the body from sharp knives. However, most SRBA materials currently have the disadvantages of large weight and thickness. This paper aims to prepare lightweight and high-performance SRBA by 3D printing truss structure and resin-filling method. Design/methodology/approach The stab resistance truss structure was prepared by the fused deposition modeling method, and the composite structure was formed after filling with resin for dynamic and quasi-static stab tests. The optimized structural plate can meet the standard GA68-2019. Digital image correlation technology was used to analyze the local strain changes during puncture. The puncture failure mode was summarized by the final failure morphologies. The explicit dynamics module in ANSYS Workbench was used to analyze the design of the overlapped structure stab resistance process in this paper. Findings The stab resistance performance of the 3D-printed structural plate is affected by the internal filling pattern. The stab resistance performance of 3D-printed structural parts was significantly improved after resin filling. The 50%-diamond-PLA-epoxy, with a thickness of only 5 mm was able to meet the stab resistance standard. Resins are used to increase the strength and hardness of the material but also to increase crack propagation and reduce the toughness of the material. The overlapping semicircular structure was inspired by the exoskeleton structure of the demon iron beetle, which improved the stab resistance between gaps. The truss structure can effectively disperse stress for toughening. The filled resin was reinforced by absorbing impact energy. Originality/value The 3D-printed resin-filled truss structure can be used to prepare high-performance stab resistance structural plates, which balance the toughness and strength of the overall structure and ultimately reduce the thickness and weight of the SRBA.

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Stab Resistant Analysis of Body Armour Design Features Manufactured via Fused Deposition Modelling Process

Cited by 5 publications

References 13 publications

Stab-Resistant Polymers—Recent Developments in Materials and Structures

Stab-Resistant Polymers—Recent Developments in Materials and Structures

The Behaviour of Stratified Fabrics of Aramid Fibres under Stabbing Conditions

Study on the mechanism and performance of 3D-printed PLA/epoxy composite for stab resistance

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