The application of PA/CF in stab resistance body armor

Yuan, Mengqi; Liu, Y; Zheng, Gong; Qian, Xinming

doi:10.1088/1757-899x/213/1/012027

Cited by 14 publications

(8 citation statements)

References 9 publications

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“…[ 10 ] Furthermore, it is difficult to simultaneously impart protection and flexibility, further limiting their practical application. [ 11,12 ] With the development of high‐performance fibers, many researchers have focused their efforts on enhancing soft stab‐resistance materials using unique fabric structure design, [ 13–17 ] finite element analysis, [ 18–20 ] and modeling. [ 21,22 ] Although textiles made from high‐performance fibers are lightweight and flexible, single‐layer pristine textiles possess a low level of cut‐/stab‐resistance.…”

Section: Introductionmentioning

confidence: 99%

Crocodile Skin‐Inspired Protective Composite Textiles with Pattern‐Controllable Soft‐Rigid Unified Structures

Mao

Zhou

Yao

et al. 2023

Adv Funct Materials

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Functional textiles with desirable protective properties (i.e., high cut‐, stab‐, and abrasion resistance) and wearability (i.e., excellent flexibility and permeability) remain unmet goals for personal protective equipment. Herein, inspired by crocodile skin, a unique and soft‐rigid unified structure (SRUS) is reported by integrating rigid protective blocks onto a soft textile substrate while obtaining a high cut‐, stab‐, and abrasion‐resistant composite textile that is flexible, waterproof, and breathable. Rigid blocks, consisting of epoxy resin reinforced by inorganic powders, strongly adhere to the soft textile surface with small intervals between each other via a pattern‐controllable integrated molding (PCIM) approach. Consequently, the SRUS design guarantees superior protective performance through rigid protective blocks and satisfactory flexibility and permeability via soft textiles and intervals. The SRUS textile achieves excellent cut‐resistance (58 N), the highest grades of stab‐ (38 N) and abrasion‐resistance (600 r mg−1), and good flexibility (65 mN cm) and permeability (60 mm s−1) values, indicating a distinct combination of desirable protective and wearable performance. The proposed SRUS protective textiles, incorporating the PCIM approach, offer a novel strategy for manufacturing functional soft composite textiles that combine high protective performance and good wearability, opening up a new avenue for the development of personal protective equipment.

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Section: Introductionmentioning

confidence: 99%

Crocodile Skin‐Inspired Protective Composite Textiles with Pattern‐Controllable Soft‐Rigid Unified Structures

Mao

Zhou

Yao

et al. 2023

Adv Funct Materials

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“…The same structures were investigated by Gong et al who tested different PA materials, partly including glass fiber, with very similar results [ 48 ]. Including PA/carbon fiber, the same structures were tested again, where the PA/carbon fiber specimens needed only a thickness of 6.5 mm to show sufficient stab resistance [ 49 ].…”

Section: 3d Printed Polymer-based Body Armormentioning

confidence: 99%

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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“…The new structural configuration has been inspired from nature as shown in Figure 5. It is observed from nature that Crocodile has few creatures possess armor that is efficient at dealing with sharp impact loading across the whole body which shaped in pyramidal structure as shown in Figure 5 as which minimized the plate damage by dispersing the energy created from sharp-edged hitting [8] [31] [32].…”

Section: Proposed Structural Configurationmentioning

confidence: 99%

“…Abundant researchers have discussed the response of blast waves on many geometric configurations theoretically [6] [7], numerically and experimentally [8] [9] [10] [11] [12], such as Walid Attia, Sherif Elwan and Ismail Kotb [12] Discuss the performance of different types of reinforced concrete barrier walls that were subjected to blast loads and also applied a parametric study for nine RC barrier wall systems with many geometries modeled in the three dimensions with different parameters using ANSYS Autodyn software version 18.2. It has been found that the walls with the steady base of 1.0-meter-thick up to 0.5-meter-high with a confront hunch up to 2.0-meter-high are better than all other considered walls.…”

Section: Introductionmentioning

confidence: 99%

Bio-Inspired of Pyramidical Concrete Barrier Walls against the Effects of Explosion Waves

Zahran¹,

Hassan²,

Osman³

2022

OJCE

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Biomimicry is a technique that inspired solutions to engineering problems through the study of natural systems, designs and processes. Recently, the engineering Biomimicry technique has been used to inspire a protection system against the blast waves and that can mitigate, absorb, and reflect the blast waves. Hence, this work studies the effect of different geometrical configurations of concrete wall barriers inspired by nature against blast waves. The non-linear 3d numerical model is used to model the proposed configurations. The finite element modeling is validated with referenced experimental works. The response of the proposed structural configurations of the wall barrier is analyzed. The results showed that the new bio-inspired pyramidical structure configuration (PCBW) has a notable effect on the mitigation of blast hazards which gave the best performance for the protection of the area behind the wall barrier with 19.5% with respect to traditional concrete barrier wall (TCBW). Also, it is concluded that nature inspiration has a great effect on designing new protection systems against the effect of blast waves.

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The application of PA/CF in stab resistance body armor

Cited by 14 publications

References 9 publications

Crocodile Skin‐Inspired Protective Composite Textiles with Pattern‐Controllable Soft‐Rigid Unified Structures

Crocodile Skin‐Inspired Protective Composite Textiles with Pattern‐Controllable Soft‐Rigid Unified Structures

Stab-Resistant Polymers—Recent Developments in Materials and Structures

Bio-Inspired of Pyramidical Concrete Barrier Walls against the Effects of Explosion Waves

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