Predicting Compression Pressure of Knitted Fabric Using a Modified Laplace's Law.

Yetanawork Teyeme,Wolelaw Endalew,Simona Vasile,Tamrat Tesfaye,Lieva Van Langenhove,Benny Malengier

doi:10.3390/ma14164461

Yetanawork Teyeme, Wolelaw Endalew + Show 4 more

Open Access

https://doi.org/10.3390/ma14164461

Copy DOI

Abstract

The aim of this study is to develop a mathematical model for the prediction of compression pressure based on fabric parameters, such as engineering stress, engineering strain and engineering modulus of elasticity. Four knitted compression fabrics with different fibrous compositions and knit structures were used. Rectangular-cut strips were employed for the force–elongation characterization of the fabrics. The experimental pressure values between the fabric and rigid cylinder were assessed using a Picopress pressure measuring device. The mechanical and physical parameters of the fabric that influence the interface pressure, such as strain, elasticity modulus/stress and thickness, were determined and integrated into Laplace’s law. A good correlation was observed between the experimental and calculated pressure values for all combinations of fabrics, mounted with variable tension on the cylinder. Over the considered range of pressures, the difference between the two datasets was generally less than 0.5 mmHg. The effect of washing after five, ten and fifteen washing cycles on the fabric–cylinder interface pressure was found to be significant.

Highlights

IntroductionPublisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations
Area density of the fabrics varied from 150 g/m2 to 310 g/m2, they had a thickness between 0.29 mm and 0.58 mm and exhibited an air permeability with values between
There is a lack of studies on the interface pressure applied by the Compression clothing is broadly utilized nowadays in several medical and sports different sized garments at different extension levels

Summary

Introduction

Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. Graduated compression has been used in diverse medical applications for several years [1,2,3]. Compression garments are believed to assist in relieving ailments by providing evidence for their use in the sporting business [4,5]. The interface pressure applied by garments has not been accurately measured in the majority of research papers in this area [6,7]. Studies that have reported interface pressure measurements have commonly evaluated only the calf and the mid-thigh, which frequently reflect the exhibition of graduated compression [8,9,10]

Objectives

Methods

Findings

Conclusion