Specimen for the Determination of Fatigue Thresholds Under Cyclic Transverse Shear

2020 ◽  
Vol 55 (4) ◽  
pp. 492-501
Author(s):  
O. P. Datsyshyn ◽  
T. M. Lenkovskyi ◽  
A. Yu. Glazov
Keyword(s):  
Transverse Shear

scholarly journals Determination of Transverse Shear Stiffness of Sandwich Panels with a Corrugated Core by Numerical Homogenization

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 1976
Author(s):  
Tomasz Garbowski ◽  
Tomasz Gajewski
Keyword(s):  
Transverse Shear ◽  
Shear Stiffness ◽  
The Finite Element Method ◽  
Homogenization Procedure ◽  
Plate Structures ◽  
Corrugated Board ◽  
Energy Equivalence ◽  
The Stability ◽  
Global Stiffness Matrix

Knowing the material properties of individual layers of the corrugated plate structures and the geometry of its cross-section, the effective material parameters of the equivalent plate can be calculated. This can be problematic, especially if the transverse shear stiffness is also necessary for the correct description of the equivalent plate performance. In this work, the method proposed by Biancolini is extended to include the possibility of determining, apart from the tensile and flexural stiffnesses, also the transverse shear stiffness of the homogenized corrugated board. The method is based on the strain energy equivalence between the full numerical 3D model of the corrugated board and its Reissner-Mindlin flat plate representation. Shell finite elements were used in this study to accurately reflect the geometry of the corrugated board. In the method presented here, the finite element method is only used to compose the initial global stiffness matrix, which is then condensed and directly used in the homogenization procedure. The stability of the proposed method was tested for different variants of the selected representative volume elements. The obtained results are consistent with other technique already presented in the literature.

On the determination of transverse shear properties of paper using the short span compression test

2017 ◽  
Vol 107 ◽  
pp. 22-30 ◽  
Author(s):  
P. Hämäläinen ◽  
N. Hallbäck ◽  
A. Gåård ◽  
M. Lestelius
Keyword(s):  
Compression Test ◽  
Transverse Shear ◽  
Shear Properties ◽  
Short Span

scholarly journals A Test Method for Experimental Determination of Shear Moduli of Fibre Reinforced Composite Materials

1994 ◽  
Vol 3 (1) ◽  
pp. 096369359400300
Author(s):  
B. Laleh ◽  
P. Myler
Keyword(s):  
Composite Materials ◽  
Carbon Fibre ◽  
Transverse Shear ◽  
Test Method ◽  
Reinforced Composites ◽  
Simple Test ◽  
Shear Moduli ◽  
Reinforced Composite ◽  
Fibre Reinforced Composites

This paper describes a simple test method for determining the in-plane and transverse shear moduli of unidirectional carbon fibre reinforced composites. The method employs photoelastic coating techniques in conjunction with four point offset bend loading conditions.

Determination of the Stress Intensity Factor for a Transverse Shear Crack in a Beam Specimen

2014 ◽  
Vol 50 (2) ◽  
pp. 212-216 ◽  
Author(s):  
P. S. Kun ◽  
S. T. Shtayura ◽  
T. M. Lenkovs’kyi
Keyword(s):  
Stress Intensity Factor ◽  
Stress Intensity ◽  
Intensity Factor ◽  
Transverse Shear ◽  
Shear Crack ◽  
Beam Specimen

The Effect of Transverse Shear Deformation on the Bending of Elastic Plates

1945 ◽  
Vol 12 (2) ◽  
pp. A69-A77 ◽  
Author(s):  
Eric Reissner
Keyword(s):  
General Solution ◽  
Rectangular Plate ◽  
Transverse Shear ◽  
Plate Theory ◽  
Infinite Plate ◽  
Present Theory ◽  
System Of Equations ◽  
Elastic Plates ◽  
Classical Plate Theory

Abstract A system of equations is developed for the theory of bending of thin elastic plates which takes into account the transverse shear deformability of the plate. This system of equations is of such nature that three boundary conditions can and must be prescribed along the edge of the plate. The general solution of the system of equations is obtained in terms of two plane harmonic functions and one function which is the general solution of the equation Δψ − (10/h2)ψ = 0. The general results of the paper are applied (a) to the problem of torsion of a rectangular plate, (b) to the problems of plain bending and pure twisting of an infinite plate with a circular hole. In these two problems important differences are noted between the results of the present theory and the results obtained by means of the classical plate theory. It is indicated that the present theory may be applied to other problems where the deviations from the results of classical plate theory are of interest. Among these other problems is the determination of the reactions along the edges of a simply supported rectangular plate, where the classical theory leads to concentrated reactions at the corners of the plate. These concentrated reactions will not occur in the solution of the foregoing problem by means of the theory given in the present paper.

scholarly journals Role of Transverse Shear Modulus in the Performance of Corrugated Materials

Materials ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 3791 ◽  
Author(s):  
Tomasz Garbowski ◽  
Tomasz Gajewski ◽  
Jakub Krzysztof Grabski
Keyword(s):  
Shear Modulus ◽  
Transverse Shear ◽  
High Strength ◽  
Analytical Description ◽  
Torsion Test ◽  
Corrugated Board ◽  
Strength And Durability ◽  
Constitutive Parameters

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.

Sign in / Sign up

Export Citation Format

Share Document