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Use of Eco-friendly Protective Compounds to Increase Crack Resistance of Timber Structures

Shkarovskiy Alexander, Mironova Stefania, Mamedov Shirali, Danilov Egor

Rocznik Ochrona Środowiska

2022

Tom 24

74--82

The paper presents the research results on using eco-friendly impregnation materials to reduce cracking in load-bearing timber elements. The behaviour of pine elements was studied when impregnation materials based on linseed oil were used. Statistical data are given on the reduction in the growth rate of the length and width of cracks, dependent on the number of protective layers of the finishing material. The effect of the absence of cracks on timber elements during atmospheric drying is described, considering the use of a three-layer paint and varnish coating. The effect of the increase in timber structures’ durability and corresponding cost and material consumption reduction in timber structures have been proven.

Exposure of the human eye to wind

Can O. F.

Biocybernetics and Biomedical Engineering

2016

Vol. 36, no. 1

130--137

We report an investigation of the exposure of the human eye to wind. The study was carried out at wind speeds of 40, 80, and 160 km/h. The pressure and forces acting on the eye were examined using the ANSYS CFX software package. The results highlight the necessity of using glasses, contact lens, or protective equipment when, for example, riding a motorcycle, skiing, parachuting, and paragliding.

Active Thermography in Qualitative Evaluation of Protective Materials

Gralewicz G., Więcek B.

International Journal of Occupational Safety and Ergonomics

2009

Vol. 15, No. 4

363--371

This is a study of the possibilities of a qualitative evaluation of protective materials with active thermography. It presents a simulation of a periodic excitation of a multilayer composite material. Tests were conducted with lock-in thermography on Kevlar® composite consisting of 16 layers of Kevlar® fabric reinforced with formaldehyde resin with implanted delamination defects. Lock-in thermography is a versatile tool for nondestructive evaluation. It is a fast, remote and nondestructive procedure. Hence, it was used to detect delaminations in the composite structure of materials used in the production of components designed for personal protection. This method directly contributes to an improvement in safety.