Theoretical and experimental investigations on the effects of friction, bending rigidity, extensibility, and Poisson's ratio on fabric tensile properties

2020 ◽  
pp. 004051752094945
Author(s):  
Yi Sun ◽  
Dongming Zheng ◽  
Gui Liu ◽  
Zhaoqun Du ◽  
Zou Haochen ◽  
...  
Keyword(s):  
Tensile Properties ◽  
Power Law ◽  
Evaluation System ◽  
Surface Friction ◽  
High Accuracy ◽  
Radius Ratio ◽  
Experimental Investigations ◽  
Bending Rigidity ◽  
Practical Application ◽  
Runge Kutta Method

A three-point tensile model that consists of a noncontact model and a modified capstan model of contact sections, including coupling effects of factors, is established in this study. The tension ratio calculated using the Runge–Kutta method increases along with the extensibility, surface friction coefficient, and radius ratio and is inhibited by the power-law friction ([Formula: see text]). Moreover, the theoretical model in a case with all the factors and frictional modification shows high accuracy with the actual test of the quick-intelligent handling evaluation system, and the Poisson's effect can be negligible, especially with the power-law friction. It has been confirmed that greater surface roughness and thickness (lower radius ratio) with worse extensibility result in tighter fabric tensile properties. Therefore, this work can provide theoretical guidance for the measurement of fabric tensile properties and the evaluation of practical application of fabrics.

Effect of rinse cycle softener treatment on the low-stress mechanical properties of cotton-woven fabric

2020 ◽  
Vol 24 (3) ◽  
pp. 199-210
Author(s):  
R. Rathinamoorthy ◽  
K. Gayathri Shree ◽  
R. Vaijayanthi ◽  
M. Brindha ◽  
A. Narmatha
Keyword(s):  
Mechanical Properties ◽  
Tensile Properties ◽  
Evaluation System ◽  
Statistical Significance ◽  
Woven Fabric ◽  
Maximum Pressure ◽  
Bending Rigidity ◽  
Final Thickness ◽  
Content Type ◽  
Rinse Cycle

Purpose The application of rinse cycle softener after the household laundry process has become more common in recent times. This study aims to understand the effect of repeated rinse cycle softener treatment on the mechanical and frictional properties of the cotton fabric. Design/methodology/approach Cotton-woven fabric is treated with commercial rinse cycle softener repeatedly for 15 times. After treatment, the fabric was evaluated for the changes in mechanical properties using the Kawabata evaluation system. Findings The results of this study revealed that the softener treatment reduces the tensile properties (41.25%) and increases the overall extensibility of the fabric up to 20.89%. The shear (34.57%) and bending rigidity of the treated fabric are reduced considerably than the untreated fabric (58.02%). The increment in the fabric softness and fluffiness was confirmed with the increment in the compression and the difference between the initial and final thickness at maximum pressure. Statistical significance (p < 0.05) is noted only in the case of bending and surface friction properties (dynamic friction). Originality/value The usage of rinse cycle softeners in the household laundry has a significant influence on the comfort characteristics of the cotton-woven fabric. Repeated usage of rinse cycle softener increased the fabric softness and fluffiness of the fabric and also reduced the tensile properties significantly.

The effect of plasma treatment and tightness factor on the low-stress mechanical properties of single jersey knitted wool fabrics

2016 ◽  
Vol 88 (5) ◽  
pp. 499-509 ◽  
Author(s):  
Saeed Shaikhzadeh Najar ◽  
Xungai Wang ◽  
Maryam Naebe
Keyword(s):  
Mechanical Properties ◽  
Plasma Treatment ◽  
Evaluation System ◽  
Atmospheric Pressure Plasma ◽  
Surface Friction ◽  
P Value ◽  
Shear Rigidity ◽  
Bending Rigidity ◽  
Wool Fabrics ◽  
Low Stress Mechanical Properties

The effects of atmospheric pressure plasma treatment and the tightness factor on the low-stress mechanical properties of weft-knitted wool fabrics were evaluated using the Kawabata Evaluation System for Fabric (KES-F). The statistical analysis showed that the plasma treatment and the tightness factor had significant effects on the fabric low-stress mechanical properties ( p-value < 0.05). Plasma-treated fabrics showed significantly higher bending and shear rigidity and hysteresis, compression energy, thickness, compressibility, surface friction and lower compression resilience and geometrical roughness values compared with untreated fabrics. An increase in the fabric tightness factor significantly increased fabric thickness, bending and shear rigidity and hysteresis, and decreased tensile extensibility and geometrical roughness. The relationship between primary handle attributes evaluated by Wool HandleMeter and KES-F mechanical properties was also investigated. The results confirmed a highly linear correlation between these two sets of data, where rough/smooth and hard/soft attributes evaluated by the Wool HandleMeter had the highest correlation with bending rigidity, shear properties and bending hysteresis, as measured by the KES-F.

scholarly journals Surface Characteristics of Seersucker Woven Fabrics

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Malgorzata Matusiak ◽  
Vladimir Bajzik
Keyword(s):  
Surface Roughness ◽  
Evaluation System ◽  
Surface Friction ◽  
Surface Characteristics ◽  
Measurement Procedure ◽  
Woven Fabrics ◽  
Point Of View ◽  
Woven Fabric ◽  
Weft Yarn ◽  
Surface Parameters

AbstractThe surface characteristics of fabrics are important from the point of view of the sensorial comfort of clothing users. Surface friction and surface roughness are the most important surface parameters of fabrics. These parameters can be measured using different methods, the most important and well-accepted method being that using the Kawabata evaluation system (KES)-FB4 testing instrument. In this work, the surface roughness and surface friction of the seersucker woven fabric have been determined using the KES-FB4. However, the measurement procedure needs modification. On the basis of the results, the influence of the repeat of the seersucker effect and the linear density of the weft yarn on the surface parameters has been determined.

scholarly journals Linguistic scales: current state-of-the-art

2019 ◽  
Vol 17 (3) ◽  
pp. 5-17
Author(s):  
Mariya K. Timofeeva
Keyword(s):  
Experimental Investigations ◽  
Dialogue Systems ◽  
Practical Application ◽  
General Picture ◽  
Current State ◽  
Formal Ontologies ◽  
Semantics And Pragmatics ◽  
Subject Areas ◽  
Basic Ideas ◽  
Concrete Language

The aim of this article consists in reviewing the basic areas of studying language scales in pragmatics; several prospects of their investigation are discussed. Presently, language scales are the object of intensive research in semantics and pragmatics, from linguistic, logical, psycholinguistic, and neuro-linguistic perspectives. We are interested mainly in pragmatics (although the area of semantics is also considered) and concentrate on linguistic rather than logical, psycholinguistic, or neuro-linguistic aspects. The article continues the series of publications intending to review and systematize pragmatic investigation in basic topical areas. An interest in studying linguistic scales in pragmatics has increased primarily due to the works of H. P. Grice, L. Horn, G. Gazdar, and S. Levinson. An important class of general pragmatic principles of communication was introduced by H. P. Grice and then was elaborated on greater detail in neo-gricean pragmatics. This class of principles specifies quantity characteristics of communication, and can be defined in terms of scales. Language scales give rise to a special class of implicatures called “scalar implicatures”. In many cases, it is necessary for a speaker to choose some position on a scale. Scalar implicature appears as a result of this choice. Each position potentially generates a certain set of implications. This pragmatic phenomenon is intensively studied in linguistics, logic, and experimental investigations. The literature in the area is ample; the article draws only a general picture of the area. The article proposes: 1) to elicit a system of potential language scales for a concrete language; 2) to consider individual / situational scales; 3) to consider dynamics of scales in speech (in accordance with basic ideas of dynamic semantics). The proposed areas of practical application are the following: stylistic analysis and studying an author’s style, modelling of reasoning and communication (particularly in dialogue systems), constructing formal ontologies of different subject areas.

A Study of e-Commerce Transaction Risk Assessment Model in Mobile Internet

2021 ◽  
pp. 789-799
Author(s):  
Zhihong Huang
Keyword(s):  
Risk Assessment ◽  
Information Technology ◽  
Evaluation System ◽  
Economic Loss ◽  
Mobile Terminal ◽  
Mobile Internet ◽  
Assessment Model ◽  
Risk Assessment Model ◽  
Practical Application ◽  
Continuous Development

With the continuous development of information technology, mobile e-commerce as a new economic and industrial mode has brought great benefits to the society. Mobile e-commerce does not need to bear the constraints of time and place, which has brought great benefits to the enterprise, from the point of trading, mobile e-commerce relies on convenient mobile terminal devices to provide convenience and unlimited trading environment for the user. However, there is a certain risk, mobile e-commerce is different from traditional e-commerce. It may bring many new problems and risks, and may lead to serious economic loss. So how to make reasonable assessment of mobile e-commerce transaction risk and then select strategy to minimize the risk is very important for the development of mobile e-commerce. In this paper, the risk of mobile e-commerce transactions is analyzed firstly, and then it uses a reasonable evaluation system to build a mobile e-commerce transactions risk assessment model. Finally, with the fact, it shows that the model has good feasibility and practical application value.

A Study of e-Commerce Transaction Risk Assessment Model in Mobile Internet

2017 ◽  
Vol 15 (4) ◽  
pp. 1-10
Author(s):  
Zhihong Huang
Keyword(s):  
Risk Assessment ◽  
Information Technology ◽  
Evaluation System ◽  
Economic Loss ◽  
Mobile Terminal ◽  
Mobile Internet ◽  
Assessment Model ◽  
Risk Assessment Model ◽  
Practical Application ◽  
Continuous Development

With the continuous development of information technology, mobile e-commerce as a new economic and industrial mode has brought great benefits to the society. Mobile e-commerce does not need to bear the constraints of time and place, which has brought great benefits to the enterprise, from the point of trading, mobile e-commerce relies on convenient mobile terminal devices to provide convenience and unlimited trading environment for the user. However, there is a certain risk, mobile e-commerce is different from traditional e-commerce. It may bring many new problems and risks, and may lead to serious economic loss. So how to make reasonable assessment of mobile e-commerce transaction risk and then select strategy to minimize the risk is very important for the development of mobile e-commerce. In this paper, the risk of mobile e-commerce transactions is analyzed firstly, and then it uses a reasonable evaluation system to build a mobile e-commerce transactions risk assessment model. Finally, with the fact, it shows that the model has good feasibility and practical application value.

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