Resistance to tearing plays a major role when evaluating the reliability of textiles used for example in protective clothing [1] and in composite materials [2]. Tearing in textile structures proceeds through the formation and propagation of a Del zone ahead of the crack. It arises from the stretching and slippage of longitudinal yarns along transverse yarns followed by the stretching and alignm...

Abstract Nylon cord rubber has the advantages of small residual deformation and is easy to lift lower tubing string in low-permeability oil gas reservoirs. However, it associated with low-pressure resistance poor sealing performance. To enhance performance nylon rubber, a three-dimensional numerical model was established its accuracy experimentally determined. The Plackett–Burman test, Steepest...

the effects of trichloroacetic acid/methylene chloride (tcac/mc) on the mechanical properties and solvent texturing of polyester yarns are studied. the treatments are carried out in unstrained and strained states at different concentrations of tcac for various treatment times. breaking load and elongation-at-break of treated yarns have been recorded. treatments of polyester yarns with tcac/mc i...

Carbon nanotube (CNT) arrays can be drawn into a web and then twisted into threads. These CNT threads contain thousands of carbon nanotubes in their cross-section and can be further composed into yarns consisting of one or more threads. CNT yarns exhibit significant mechanical stiffness and strength and low electrical resistivity. More importantly, CNT yarns exhibit piezoresistance that could b...

Carbon nano tube (CNT) yarn is an axially aligned CNT assembly. It has great potential many applications. In this study, the mechanical and electrical properties of the aerogel-spun CNT yarns and CNT/Polydimethylsiloxane (PDMS) composite yarns were investigated. The CNT/PDMS yarn was fabricated by droplet infiltration of PDMS solution into the aerogel-spun CNT yarn. The mechanical properties of...

There are many accidents in road traffic involving both heavy goods vehicles and passenger vehicles, the interpretation of causes some can be very difficult. The paper presents results an analysis accident a truck two cars. hypothesis was verified that incident took place after damage to front wheel truck, which resulted uncontrolled change direction its travel leaving lane opposite damaged tir...