On the characterization and modelling of high-performance para-aramid fabrics

Abstract

In this work, seven different types of fabrics based on para-aramid yarns with different interlacing geometries and reinforcement polymer matrix have been characterised and compared from yarn level to weave level. Mechanical properties such as maximum stress, failure strain, and elastic modulus have been obtained from uniaxial tensile tests, while the inter-yarn friction coefficients (s tatic an d ki netic) ha ve be en ob tained by a combination of single yarn pull-out tests and an analytical model. Results show that mechanical properties are quite similar at yarn level but different at fabric level. Thus, the geometry, orientation and section of the yarn play an important role in the mechanical properties of the fabric. As an application of these results, a mesoscopic three-dimensional numerical model has been developed, and simulations of ballistic impact test have been carried out validating the model with experimental tests.

Ballistic performance of aramid composite combat helmet for protection against small projectiles

“…El número de elementos de cada capa es 8090. Referente a las propiedades mecánicas del material, diversos estudios llevados a cabo se han centrado en la caracterización mecánica de las fibras y tejidos de aramida [12,[109][110][111][112][113][114]. Sin embargo, existe una carencia de estudios experimentales sobre caracterización del compuesto fibra-resina.…”

Numerical Modelling of Ballistic Impact Response at Low Velocity in Aramid Fabrics

“…The energy absorption rate of aramid fabric during impact depends on many variables. Among all of them, it should be mentioned the fiber modulus and the material modulus, which is related to the ability to brake the projectile [22,45].…”

Fabrication and Mechanical Characterization of Dry Three-Dimensional Warp Interlock Para-Aramid Woven Fabrics: Experimental Methods toward Applications in Composite Reinforcement and Soft Body Armor

“…The structure of the fabric involved in technical applications should have higher mechanical performance compared to the structure involved in conventional applications such as clothing and home furnishings. Previously, two-dimensional (2D) woven (in the form of plain, twill, and satin) and unidirectional (UD) fabric structures were mainly used and discussed regarding their mechanical performance under different loading conditions [ 1 , 2 ]. Apart from 2D and UD fabrics, three-dimensional (3D) woven fabric have also become promising for use in composite materials, such as fibrous reinforcement and protective solutions, as well as other technical applications [ 3 , 4 ].…”