Abstract
In a description of materials for orthotropic panels with a soft and/or corrugated core, it is important to correctly determine all constitutive parameters. In laboratory practice, the determination of transverse shear modulus is often overlooked. This paper presents a method for determining this property based on a plate torsion test and a correctly formulated analytical description. It has been proved that the transverse shear effect in some cases cannot be omitted because it significantly influences the mechanical behavior of corrugated board. The method of transverse shear modeling used so far can be modified to eliminate dimensionless, physically unjustified coefficient and replace them with coefficients that have a physical basis. It is shown here that such modification leads to results with lower error. The effective modeling of transverse shear effects enables a more conscious design of corrugated board structures, where the final goal is to obtain packaging with high strength and durability but low material consumption.
Highlights
Corrugated materials and structures have been used in mechanical engineering for many years, their application may have various characters from webs for I-beam [1] through very unique natural lattice sandwich structures [2] to a more conventional function of supporting structures in the corrugated board packaging industry
In order to correctly identify the properties of cardboard as a construction material, it is to perform a series of laboratory tests
Theplates effectwas of the contribution transverse shear on the results of torsion tests of corrugated analyzed
Summary
Corrugated materials and structures have been used in mechanical engineering for many years, their application may have various characters from webs for I-beam [1] through very unique natural lattice sandwich structures [2] to a more conventional function of supporting structures in the corrugated board packaging industry. Internet sales naturally stimulate the market for transport services, which leads to increased demand for transport boxes. For effective recycling of wastepaper, many large production and trade companies use corrugated cardboard as a safe and environmentally friendly material for packaging their products. In response to growing market requirements, the paper packaging industry constantly raises the standards of its packaging, as it relates to recycling and for more effective use of materials (paperboard and corrugated cardboard)
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