Thickness Optimisation of Sealed Seams in Respect of Insulating Properties

Korycki, Ryszard; Szafrańska, Halina

doi:10.5604/12303666.1228185

Cited by 13 publications

(10 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The mathematical model includes the heat transfer equation and a set of conditions [2]. The impact of seams on heat insulation and moisture resistance is analyzed in a previous paper [3] for different types of sealed seams, typically used to connect the parts of clothing. The coupled transport is defi ned by the heat and mass transport equations and a set of conditions [4,5].…”

Section: Aim Of the Article Is To Analyze The Seams Connecting The Comentioning

confidence: 99%

See 1 more Smart Citation

Estimation of Seams in Paraglider Wing

Maślanka

Korycki

Szafrańska

2020

Autex Research Journal

Self Cite

View full text Add to dashboard Cite

The aim of the article is to analyze the seams connecting the covering textiles in paraglider wing and estimate their physical strength. The most extreme flight parameters (the angle of attack and velocity) in the numerical model of the wing allow the determination of the mean pressure inside the contour and the maximal difference between the pressures on the inner and the outer material surfaces. The preprocessing stage and numerical calculations in Ansys environment consider three different covering materials. The tool Porous Media is used to create the objects of a given value of air permeability. The estimated parameter of seam is the maximal pressure difference between both sides of the covering material, which that interacts with the test results. The quality index of the seam is defined by the maximal force to seam rupture and relative elongation during rupture. The obtained results indicate that the seams are resistant to the pressure difference caused by the most extreme flight parameters.

show abstract

Section: Aim Of the Article Is To Analyze The Seams Connecting The Comentioning

confidence: 99%

“…Values of the Porous Resistance parameter for corresponding materials, based on Korycki and Szafrańska[3] …”

mentioning

confidence: 99%

Estimation of Seams in Paraglider Wing

Maślanka

Korycki

Szafrańska

2020

Autex Research Journal

Self Cite

View full text Add to dashboard Cite

show abstract

“…The optimization procedure is usually solved using the optimization functional in general form, the stationarity of Lagrange functional and first-order sensitivity approach [19]. The set of structural parameters (design variables) can be optimized applying the objective functional of unequivocal physical interpretation in case of optimal thickness [20,21] or insulating properties of seams [22]. The same approach can be applied to solve coupled thermo-mechanical problems [23] or identify the structural shape or material properties [24,25].…”

Section: Introductionmentioning

confidence: 99%

Multicriteria Optimization of the Mechanical Properties in Laminated Seams

Szafrańska

Korycki

2021

Materials

Self Cite

View full text Add to dashboard Cite

In order to ensure a comprehensive evaluation of laminated seams in working clothing, a series of research was carried out to determine the correlation between the parameters of the seam lamination process (i.e., the temperature, the time, the pressure) and the mechanical properties of laminated seams. The mechanical properties were defined by means of the maximum breaking force, the relative elongation at break and the total bending rigidity. The mechanical indexes were accepted as the measure of durability and stability of laminated seams. The correlation between the lamination process parameters and the final properties of the tested seams in working clothing was proposed using a three-factor plan 33. Finally, the single-criteria optimization was introduced and the objective functional is the generalized utility function U. Instead of three independent optimization problems, the single problem was applied, and the global objective function was a weighted average of partial criteria with the assumed weight values. The problem of multicriteria weighted optimization was solved using the determined weights and the ranges of acceptable/unacceptable values.

show abstract

“…Korycki and Szafrańska [12] determined the optimal thickness of material layers in seams in respect of their insulating properties. They analysed the insulation of different types of sealed seams which are typically used to connect the different parts of clothing.…”

mentioning

confidence: 99%

Usage of Fusible Sewing Threads to Improve the Waterproof Property of Seam

Mesegul¹,

Karabay

2020

View full text Add to dashboard Cite

In classical stitching process, needle holes occur during the penetration of the needle through the fabric. If the waterproofness of the sewn product is important, the water leakage from these holes must be prevented. To prevent this negative situation, different techniques such as sealing of seams with waterproof tapes, joining the textile materials by bonding or welding are used. Among these techniques, there is no needle damage in bonding and welding and all the seam area is covered by thermal or chemical bonding. In sewing technology, the water leakage is prevented by covering all the seam area with seam sealing tape. These three methods have different effects on the physical properties of the seams obtained. Instead of covering the whole seam area, covering just the needle damages is the focus of this research. With this aim, fusible sewing threads were used to cover the needle damages to increase the waterproof performance of seam line. The fusible sewing threads have not been used for obtaining waterproof seams before. In this research, the fusible sewing threads were used as lower thread in different combinations. Initial results of waterproofness test show that, melted fusible threads improve the waterproof performance of seams. In other words, the needle damages on sewn fabric can be covered by melted fusible sewing thread. However, unbalanced seam is the negative side of this research because of using different threads as needle and bobbin thread. Additionally, there is no variety of fusible threads to select an appropriate one for this method. The study is hoped to be a sample for the further studies on this method, using different fusible threads, fabrics, seam types and even improving new fusible threads for this waterproofing method.

show abstract

Thickness Optimisation of Sealed Seams in Respect of Insulating Properties

Cited by 13 publications

References 14 publications

Estimation of Seams in Paraglider Wing

Estimation of Seams in Paraglider Wing

Multicriteria Optimization of the Mechanical Properties in Laminated Seams

Usage of Fusible Sewing Threads to Improve the Waterproof Property of Seam

Contact Info

Product

Resources

About