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"Cable knitting."
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Cable knits from Nordic lands : beauty and ingenuity in over 20 unique patterns
Swedish knitting phenom Ivar Asplund learned how to work cabling from his grandmother and was smitten right away--such marvelously intricate designs, and yet at their heart the underlying principles were so simple. A few stitches trading places here and there, and suddenly flowing braids, interwoven figures of eight, or classic x-and-o patterns came to life before his eyes. In this compelling collection, Asplund invites knitters to join him in exploring the possibilities, combining his grandmother's well-loved lessons in classic and time-tested cable knitting techniques with the elegant simplicity of contemporary Scandinavian design. You'll find over 20 projects, ranging from sweaters, cardigans, and ponchos to scarves, wrist warmers, and hats--for children and adults--that offer an attractive balance of historic and modern elements, as well as superior fit. Step-by-step pattern instructions guide novice cablers through straightforward reversible projects and eye-catching cable repeats; veterans can test their skills on larger, more complex garments with multiple cable panels; and a tutorial section explains the fundamentals of working and combining cables in any design to achieve a variety of striking effects.
Book
Lightweight and high-performance carbon nanotube fabrics for electromagnetic interference shielding
Electromagnetic interference (EMI) shielding materials play a crucial role in safeguarding electronic devices from external interference, ensuring their stable operation. Despite their effectiveness, traditional metallic EMI shielding materials face significant limits, such as high weight density, rigidity, and limited adaptability to complex circuitry. In this study, a lightweight, flexible carbon nanotube (CNT) fabric with superior EMI shielding performance was developed through the scalable preparation of CNT fibers and knitting of CNT yarns. The CNT fibers demonstrated excellent specific tensile strength (25.3 cN/dtex) and high electrical conductivity (3634.2 ± 114.0 S/cm). The resulting CNT fabric achieved an EMI shielding effectiveness of 66.8 dB for a single layer and 111 dB for multiple layers while maintaining an ultralow density of 0.2 g/cm
3
. Additionally, the CNT fabric was durable to withstand repeated bending and washing. When applied as the EMI shielding layer in coaxial cables, the CNT fabric delivered comparable signal transmission performance to that of copper while reducing the mass of the shielding layer by 32.1%. These comprehensive properties position CNT fabric as a promising alternative to conventional metal-based shielding materials, with broad application potential in aerospace, electronics, and related fields.
Journal Article
Experimental Structural Template on Tensegrity and Textile Architecture Integrating Physical and Digital Approaches
The construction industry is a major contributor to global carbon emissions, driving the need for sustainable solutions. Ultra-lightweight structures have emerged as an effective approach to reducing material usage and energy consumption. This study explores the potential of ultra-lightweight architectural systems through a learning-by-doing methodology, integrating innovative composite materials, PolRe, and knitting techniques to enhance tensegrity structures for sustainable, deployable, and efficient structural designs. Combining physical modeling, inspired by Frei Otto and Heinz Isler, with digital simulations using Kangaroo 2 and Python, this research employs form-finding and finite element analysis to validate structural performance. A 1:5 scale prototype was constructed using a manual knitting machine adapted from traditional knitting techniques. The integration of elastic meshes and rigid joints produced modular tensegrity systems that balance tension and compression, creating reversible, deployable, and material-efficient solutions. This study bridges conceptual aesthetics with structural efficiency, providing a template for sustainable, ultra-lightweight, textile-based structures.
Journal Article
Prototyping knit tensegrity shells: a design-to-fabrication workflow
This paper describes a design-to-fabrication workflow for knit membrane tensegrity shells, a novel class of tensegrity structures that substitute discrete cables with a continuous machine-knitted membrane as the main tensile element. The workflow integrates (a) a simplified, simulation-driven design method for membrane tensegrity shells, (b) the conversion of the membrane geometry into digital inputs for Computer Numerical Control (CNC) knitting, and (c) the rationalization of the assembly connection details. This workflow begins by iteratively parameterizing reciprocal strut patterns, connecting the strut endpoints to form a mesh to represent the membrane, and implementing a dynamic relaxation algorithm to form-find the tensegrity shell geometry. The digital model then undergoes optimization procedures to negotiate between structural performance and fabrication constraints. Subsequently, the membrane geometry is extracted and converted into machine instructions to be CNC knitted with the following features: (i) integrated pockets to hold compressive struts at intended locations within the membrane, (ii) different types of yarn to create localized stiffer regions in response to stress concentrations imposed by the struts, and (iii) alterations of the shape of the membrane to adhere to the digital geometry. Several physical prototypes, including a 4-meter-diameter pavilion that was exhibited at the International Association for Shell and Spatial Structure’s Form&Force Expo 2019, serve as case studies for assessing the fidelity, benefits, and limitations of the proposed workflow.
Journal Article
3-D Deformation Behavior Simulation of Cable Stitch Based on Particle System in Weft Knitted Fabrics
The static simulation of weft knitting can be efficiently realized by graphics simulation techniques, but there still remains a challenge for mechanical models. The lack of practical mechanical models significantly limit the realistic deformation behaviors of complex cable stitches, which lead to a great different between the simulation effect and the actual fabric. In order to obtain the deformation behavior and volumetric performance of cable stitch, loop models were built based on an improved particle system in this work. Compared with plain weft knitted, the offset value of bonding points of cable stitches were measured. By analyzing the relationship between the deformation of loops and the displacement of the particles, the deformation behavior of cable stitch was simulated. Velocity-Verlet integration was introduced to simulate cable stitches and the stable results were obtained. The results show that these models and algorithm displayed the accurate deformation behavior of cable stitches, as demonstrated by qualitative comparisons to measure the deformations of actual samples.
Journal Article
Interactive Shape Sizer Library for Fully Fashion Knitwear Training
The fully fashion knitting is an actual solution for producing two-dimensional shapes, appropriate to the desired finished garment structure, with minimal or no cutting, being one of the most efficient technology. The knitting programs can be processed using the automatic specialized software, developed worldwide by various machine builders. Among them, the M1plus® software from Stoll GmbH Germany offers programs for creating completely new shapes or available libraries for customizing the existing shapes. The paper focuses on the presentation of the opportunities offered by the Shape Sizer program, as interactive package for designing and tailoring the shapes for online or offline training. The user can exploit the flexible features of this package, concerning the type of the knitwear product, with all structural and shape particularities. There are a variety of different shapes available, from the pullover to the single shapes, cardigans or slipovers. The programmer accesses the library choosing the knitting technology type - \"fully fashion\" or \"knit and wear\", then all the details regarding the panel sizes, stitch densities, narrowing or widening steps, are set-up. The program allows the grading of the panels in all dimensions, facilitating thus the further manufacturing steps. The high quality of the final product is ensured by the shaping details of the linking between the constituent parts and the binding off at the sleeves. Working with software existing libraries is a significant simplification of the programming process, as the users do not need to build all the basic patterns every time when a new design or machine type is required. More, for the personal training and self-assessment, the off line versions are extremely useful, allowing the learner to study in his personal rhythm and environment.
Conference Proceeding
Multimedia Tools for Studying Programming Methods of Knitted Fabrics with Cables Design
Weft knitting offers the highest potential concerning the patterning possibilities and 3D shaping. Among them, cables design are unique architectures of the weft knitted fabrics, formed by using the stitch transfer, one of the fundamental technique of modern knitting. In fact, nearly all the patterns presented in current samples range contain a certain number of transferred stitches. The basic concept of cables consists in producing a series of plain stitch columns on a purl-stitch base. After a number of rows, some of the stitches, corresponding to half the stitch columns in question, are transferred on other stitch columns, while the stitches of the latter are transferred to the previous stitch columns. The stitches are thus crossed over and produce the cable effect. The students enrolled at Faculty of Textiles, Leather and Industrial Management from Iasi, following the knitwear and apparel technology study program, are provided with the relevant skills for the development of various knitted patterns by using professional software, programming, setting the knitting parameters and manufacturing the fabrics. The classical learning method of cables involves the study based on graphic knitting schemes, accompanied by long explanatory texts. Within the knitting lab, specialized teachers have developed new multimedia based learning methods. Thus, videos have been produced to demonstrate the stages of achieving a cable design effect. Also, html interactive knitting schemes have been developed that show and explain sequentially the work phases to make automated knitting programs. Students are using specialized Computer Aided Design programs to develop and test new programs for knitting cable designs, on computerized flat knitting machines. The paper presents the applications of such type, which are available for the students from knitting specialization, in html format, on the Faculty Moodle platform: http://www.moodle.tex.tuiasi.ro.
Conference Proceeding
