Results 41 to 50 of about 284,579 (270)

Stab-Resistant Performance of the Well-Engineered Soft Body Armor Materials Using Shear Thickening Fluid

open access: yesMolecules, 2022
Stab-resistant body armor can effectively prevent sharp instruments from attacking the protected parts and reduce the threat to human bodies. Shear thickening fluid (STF) is a kind of smart material with variable viscosity and its viscosity can change ...
Rubin Wei, Bin Dong, Wen Zhai, Hui Li
doaj   +1 more source

A through wall doppler radar system: active textile antenna design, prototyping and experiment [PDF]

open access: yes, 2013
Using garments as a platform for electronic sensing and communication systems opens up a wide range of novel and exciting applications. By carefully tailoring the antenna properties and by adopting a dedicated design strategy, a robust wearable antenna ...
Agneessens, Sam   +6 more
core   +1 more source

Effect of Fibre Type and Fabric Structure on Composite Materials Under Ballistic Shock Impact

open access: yesTekstilec
This study analysed the effect of fibre type and fabric structure on the behaviour of aramid and ultra-high molecular weight polyethylene (UHMW PE) composite plates under ballistic shock loading.
Mehmet Karahan   +2 more
doaj   +1 more source

Numerical Modelling and Analysis of Ballistic Performance of a Multilayer Para-Aramid Packet [PDF]

open access: yesProblemy Mechatroniki, 2016
The selection of the appropriate number of layers of textile ballistic package, in order to meet the required safety criteria according to the accepted class of bullet-proofness, is implemented mainly on the basis of experimental research in the ...
Justyna DOMINIAK, Zbigniew STEMPIEŃ
doaj   +1 more source

The increase of flexible protective materials strength characteristics by electrophysical influences

open access: yesMATEC Web of Conferences, 2017
We studied the strength of the individual threads in the longitudinal and transverse rupture, the state of threads, as well as the strength of a single layer of aramid fabric exposed to the piercing influence of the conical indenter.
Zlobina Irina, Bekrenev Nikolai
doaj   +1 more source

Charaterizations of 3D printed re-entrant pattern/aramid knit composite prepared by various tilting angles

open access: yesFashion and Textiles, 2021
This study intended to compare and analyze the Poisson's ratio and mechanical properties of aramid knit (ARNT), 3D printed auxetic re-entrant pattern (3DP-RE), and 2 types of composite fabrics manufactured with ARNT and 3DP-RE.
Imjoo Jung, Hyelim Kim, Sunhee Lee
doaj   +1 more source

Potential contribution of high strength, high modulus aramid fibers to the commercial feasibility of lighter than air craft [PDF]

open access: yes, 1975
Kevlar aramid fiber, fabric, rope and cable performance are reviewed along with the economics relevant to the material, structural, and reliability aspects of lighter than air ...
Sturgeon, D. L. G., Venkatachalam, T. K.
core   +1 more source

Hydro‐Torsional Compaction for Scalable Production of Aramid Nanofiber Threads with Densely Assembled Double‐Helical Nanostructures

open access: yesAdvanced Materials, EarlyView.
This paper introduces a scalable strategy for producing hierarchically aligned PBDT threads through wet‐spinning, controlled drawing, and post‐spinning twisting. Ionic crosslinking reinforces structural stability, whereas alignment and twisting optimize mechanical performance.
Woojae Jeong   +5 more
wiley   +1 more source

FLEXIBLE PANEL ASSEMBLY TECHNIQUES USED IN THE CONSTRUCTION OF AERODYNAMIC DECELERATOR [PDF]

open access: yesAnnals of the University of Oradea: Fascicle of Textiles, Leatherwork, 2022
A combat aircraft is stabilized by the parachute during its dangerous maneuvers such as spin, loss of speed (at low angles of incidence), vibration of the wings (at very high speeds).
JOMIR Mihaela   +3 more
doaj  

Hazards protection for space suits and spacecraft [PDF]

open access: yes, 1990
A flexible multi-layered covering article for protection against the hazards of exposure to the environment of outer space is disclosed. The covering includes an outer layer section comprising an outermost lamina of woven expanded tetrafluoroethylene ...
Dawn, Frederic S., Kosmo, Joseph J.
core   +1 more source

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