Impact of Humidity on Energy Absorption during Paper Tensile Test

Szewczyk, W.; Głowacki, Krzysztof

doi:10.5604/01.3001.0011.5787

Cited by 2 publications

(2 citation statements)

References 1 publication

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“…The paper analyses the impact on the energy consumed by paper moisture content during the tensile tests within the range of humidity balance achieved in the paper air conditioning system at a temperature of 23 °C. Two measurement methods have been proposed to forecast changes in energy breaking caused by changes in moisture content [3].…”

Section: Literature Reviewmentioning

confidence: 99%

Design & Development of a Computer Controlled Tensile Strength Testing Machine for Testing of Strings & Fabrics

Sharma¹,

Kumar²

2021

IJAERS

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Tensile testing is a primary material science test in which a sample is tension-proof until it is failure. Test results are frequently used to select an application material, to verify quality and to forecast how the material reacts with other forces. The features assessed directly by a tensile test include maximum tensile strength, maximum length and a reduction of the area. From these measures the following characteristics can also be determined: Young modulus, the ratio of Poisson, yield strength and stress resistance. Testing machine is used for the development and maintenance of better information on known materials or the development of new materials. There are many test machines, but the most common of these is the one that tests tensions, compression and bending of the materials. For the test specimen to be tested, the engine must have the proper characteristics. Three major parameters exist: strength, speed, accuracy and precision. The test machine is mainly used in the creation of the stress line diagram. The computer algorithm may be applied to compute the yield strength, tensile force, youth module or total elongation once the diagram has been generated. The author has designed & fabricated a model for demonstration of the techniques employed using viper motor (DC motor) for force exertion, load cell & instrumentation amplifier of reading force, ultrasonic distance sensor for measurement of displacement. Simultaneously a tripod mounted webcam is employed to capture real time video & image processing & employed to compute displacement on the basis of motor movement.The electromechanical and hydraulic models are offered for two types of machinery. An electric motor, a gear reduction system, and a transducers move one, two or four screws are used to produce the electromechanical Ravi Babu Sharma et al.

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Section: Literature Reviewmentioning

confidence: 99%

Design & Development of a Computer Controlled Tensile Strength Testing Machine for Testing of Strings & Fabrics

Sharma¹,

Kumar²

2021

IJAERS

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“…The influence of coatings was not the subject of his study. Szewczyk and Glowacki [20] investigated the impact of humidity on energy absorption during paper tensile tests and proposed two methods to calculate the breaking energy as a function of the moisture content. Rhim focused on the effect of moisture content on the tensile properties of paper-based food packaging materials [21].…”

Section: Introductionmentioning

confidence: 99%

Influence of Moisture, Temperature and Bleaching on the Mechanical Properties of Coated Fiber-Based Substrates

2022

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Substrates from fibrous materials are widely used in packaging applications and are produced in high quantities on roll-to-roll production lines. The anisotropic material behavior presents a demanding situation for the process control of the converting step. In this work, the influence of moisture and temperature on the mechanical properties of coated and uncoated fiber-based substrates and the influence of other material properties were investigated. The change of moisture content in relation to the surrounding temperature and relative humidity was investigated for different products. The hygroexpansion in dependence of the humidity is measured in machine and cross direction. The changes in the mechanical properties of the different materials due to changes in moisture content were investigated by tensile testing. The material behavior was highly responsive to the surrounding humidity and, thus, the material’s moisture content. A relative humidity between 60% and 70% showed the influence on the material properties most clearly. The presented work showed an influence of the coating on the moisture content for higher grammages. The effect of bleaching was also investigated. Bleaching decreases the potential for moisture absorption and, therefore, influences the moisture content and properties such as hygroexpansion. Coatings influence the hygroexpansion in an anisotropic manner. Coating and bleaching also influence the tensile properties of fiber-based materials. This article is an expanded version of a talk given at the 14th European Coating Symposium, 6–9 September 2021, Brussels, Belgium.

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Impact of Humidity on Energy Absorption during Paper Tensile Test

Cited by 2 publications

References 1 publication

Design & Development of a Computer Controlled Tensile Strength Testing Machine for Testing of Strings & Fabrics

Design & Development of a Computer Controlled Tensile Strength Testing Machine for Testing of Strings & Fabrics

Influence of Moisture, Temperature and Bleaching on the Mechanical Properties of Coated Fiber-Based Substrates

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