Search results for " textile"
showing 10 items of 45 documents
Fibre extraction from oleaginous flax for technical textile applications: influence of pre-processing parameters on fibre extraction yield, size dist…
2017
International audience; Cultivated primarily for its seeds, oleaginous flax could also be valued for the different fractions that can be extracted from the straw. However, as the straws are not harvested with the same technique and care than for the textile flax, the classical scutching technique cannot be used. As a consequence, an “all fibre” device was used to perform the separation of the different constituents of the oleaginous flax straws. The different fractions were quantified for two retting levels and for two degrees of rewetting of the stems. The physical and mechanical properties of fibres were then evaluated. It appears that the relative amount of fibres extracted from oleagino…
Generative Design for Additively Manufactured Textiles in Orthopaedic Applications
2021
AbstractThe aim of this work is to implement a new process for the design and production of orthopaedic devices to realize entirely by Additive Manufacturing (AM). In particular, a generative algorithm for parametric modelling of flexible structures to use in orthopaedic devices has been developed. The developed modelling algorithm has been applied to a case study based on the design and production of a customized elbow orthosis made by Selective Laser Sintering. The results obtained have demonstrated that the developed algorithm overcomes many drawbacks typical of traditional CAD modelling approaches. FEM simulations have been also performed to validate the design of the orthosis. The new …
Additively manufactured textiles and parametric modelling by generative algorithms in orthopaedic applications
2020
Purpose The purpose of this paper is to implement a new process aimed at the design and production of orthopaedic devices fully manufacturable by additive manufacturing (AM). In this context, the use of generative algorithms for parametric modelling of additively manufactured textiles (AMTs) also has been investigated, and new modelling solutions have been proposed. Design/methodology/approach A new method for the design of customised elbow orthoses has been implemented. In particular, to better customise the elbow orthosis, a generative algorithm for parametric modelling and creation of a flexible structure, typical of an AMT, has been developed. Findings To test the developed modelling a…
Cutaneous Recording and Stimulation of Muscles Using Organic Electronic Textiles
2016
International audience; Electronic textiles are an emerging field providing novel and non-intrusive solutions for healthcare. Conducting polymer-coated textiles enable a new generation of fully organic surface electrodes for electrophysiological evaluations. Textile electrodes are able to assess high quality muscular monitoring and to perform transcutaneous electrical stimulation.
Mechanical Characterization of a Basalt Fabric for TRM Composites: Role of the Test Variables
2021
Textile reinforced mortar (TRM) materials are currently receiving great attention for the strengthening of reinforced concrete and masonry structural elements. Mortars with different strength classes have been coupled with different kind of synthetic fabrics, such as carbon, glass, steel, PBO. Recently natural fibres and, in particular, basalt fibres are receiving increasing interest since they proved to be a promising alternative to the most common synthetic fabrics, thanks to the reduced production costs and the consequent benefits in terms of environmental impact. This paper presents an experimental investigation comprising forty-one monotonic tensile tests on textile strips made with a …
SIGNA VETUSTA MANENT: LE MACULATURAE, IL TABULARIO, I DISEGNI DI PROGETTO RITROVATI (SECC. XII – XVIII)
2014
Il nobile casato dei Ventimiglia e Donna Felice Ventimiglia Barberini
2017
Nella prima parte del saggio (R.F. Margiotta, Il nobile casato dei Ventimiglia dalla Liguria alla Sicilia) si delinea la storia dei Ventimiglia, provenienti dalla Liguria, insediatisi in Sicilia sin dal Duecento, da Francesco I a Francesco IV Rodrigo, padre di Felice Ventimiglia, e ci si sofferma sulle opere più rappresentative da loro commissionate. Nella seconda parte (M.C. Di Natale, Felice Ventimiglia Barberini dal principato di Castelbuono a Roma) si prende in esame la figura di donna Felice Ventimiglia e se ne ripercorrono le vicende della vita attraverso due significativi documenti: l'inventario dotale della nobildonna, stilato nel 1693, in occasione delle nozze con il principe di pa…
Arte Textil y tradición en la Provincia de Catamarca, Noroeste Argentino
2019
espanolLas tradiciones textiles en la Provincia de Catamarca, constituyen parte de una identidad cultural conformada a partir de elementos muy pujantes provenientes de distinto origen. Estos se traslucen tanto en estilos y tecnicas de piezas de exquisita estetica y calidad. Evidencian ademas, la historia de las industrias y manufacturas textiles que aportaron al desarrollo de esta actividad, considerada por sus habitantes como parte de su idiosincracia que -lamentablemente- con los anos tiende a desaparecer. EnglishThe textile traditions in the province of Catamarca, are part of a cultural identity formed from very vigorous elements from different origins. These are permeated both styles an…
Experimental investigation on the effectiveness of basalt-fibre strengthening systems for confining masonry elements
L’impiego di materiali compositi per il rinforzo di colonne in muratura è diventato una pratica ampiamente diffusa nel corso degli ultimi decenni. Questa tecnica, che consiste generalmente nell’applicazione di materiali polimerici fibrorinforzati (Fibre Reinforced Polymer-FRP), ha mostrato buone potenzialità, essendo in grado di garantire notevoli incrementi di resistenza e duttilità dell’elemento rinforzato, grazie ad un’azione di confinamento passivo. Tuttavia, l’impiego di compositi a matrice polimerica presenta alcuni limiti legati soprattutto alle prestazioni delle resine epossidiche, che a causa della loro natura sintetica danno luogo a problemi di compatibilità con il supporto murari…
Constitutive Models for the Tensile Behaviour of TRM Materials: Literature Review and Experimental Verification
2021
In recent years, the scientific community has focused its interest on innovative inorganic matrix composite materials, namely TRM (Textile Reinforced Mortar). This class of materials satisfies the need of retrofitting existing masonry buildings, by keeping the compatibility with the substrate. Different recent studies were addressed to improve the knowledge on their mechanical behaviour and some theoretical models were proposed for predicting the tensile response of TRM strips. However, this task is complex due to the heterogeneity of the constituent materials and the stress transfer mechanism developed between matrix and fabric through the interface in the cracked stage. This paper present…