Layered composite and contact layer. Normal separation and transversal strength

Andreev, Vladimir I.; Turusov, R. A.; Tsybin, Nikita

doi:10.1051/matecconf/201825104066

Cited by 7 publications

(6 citation statements)

References 6 publications

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“…The increase of the curves has an asymptotic character, since starting from a certain value, the gluing area ceases to affect the value of normal stresses x  . This fact was demonstrated in article [1].…”

Section: Results Of Calculationmentioning

confidence: 61%

“…In this regard, the focus is on the normal stresses arising in layers of adhesive and substrate. The article [1] shows that the difference in normal stresses at using a simplified model and a contact layer model of a general form is insignificant.…”

Section: Statement Of the Problemmentioning

confidence: 99%

“…1 is considered. In the article [1] the system of resolving equations for this model was obtained. The main objective of this article is to find the effective modulus of elasticity of a layered composite.…”

Section: Statement Of the Problemmentioning

confidence: 99%

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Layered composite and contact layer. Effective modulus of elasticity

2019

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The effective modulus of elasticity of a layered composite is one of the important characteristics. At the moment, the so-called mixture formula is most often used to calculate this characteristic. However, as a number of experiments demonstrate, the formula of the mixture does not always allow calculating the effective modulus of elasticity. The reason for this fact is the inhomogeneous stress-strain state arising in a layered composite. This article presents a method for finding the effective modulus of elasticity of a layered composite based on the contact layer model. Such approach to the calculation allows us to take into account not only the volume content of the composite components, but also many other parameters of the model.

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Section: Results Of Calculationmentioning

confidence: 61%

Section: Statement Of the Problemmentioning

confidence: 99%

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Layered composite and contact layer. Effective modulus of elasticity

2019

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“…The edge effect, as in the case of equations (1), is present. In [11], a comparison of the calculation results using the equations (1) and ( 2) is given. It should be borne in mind that use of the equations (2) greatly simplifies the resolving system of equations and makes it possible to unambiguously determine the point with the maximum value of shear stresses.…”

Section: Original System Of Equationsmentioning

confidence: 99%

Merged contact layer in adhesion mechanics

Tsybin

2021

E3S Web Conf.

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Predicting bond strength is the most common task in adhesion mechanics. To solve these problems, a contact layer model which describes the interaction of the substrate and adhesive layers, can be used. With the use of this model, which provides calculating the inhomogeneous stress-strain state of adhesive joints, a wide range of problems has been solved. Despite the fact that solutions, as a rule, are obtained in a closed analytical form, their use for processing experimental data can be difficult due to its complexity. In this regard a method that makes it possible to reduce the order of the resolving system of equations by introducing an integral contact layer connecting the adhesive layer and adjacent contact layers is proposed in this work. The application of this approach is demonstrated by the example of the most common adhesive lapped joint. As a result, the formulas for determining the parameters of the integral contact layer have been obtained. Comparison of the results obtained for the exact solution of the problem with the results obtained for the models with an integral contact layer is carried out.

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“…An efficient method for calculating layered composite materials was proposed in [ 10 , 11 ] based on the contact layer model.…”

Section: Introductionmentioning

confidence: 99%

Structural Monitoring of Underground Structures in Multi-Layer Media by Dynamic Methods

Lyapin

Beskopylny

Meskhi

2020

Sensors

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The actual problem of structural monitoring and modeling of dynamic response from buried building is considered in the framework of arbitrary dynamic load. The results can be used for designing underground transport constructions, crossings, buried reservoirs and foundations. In existing methods, the system of sensors that register the response to a dynamic action does not allow for effective interpretation of the signal without understanding the dynamic features and resonance phenomena. The analytical and numerical solution of the problem of the dynamics of a buried object in a layered medium is considered. A multilayer half-space is a set of rigidly interconnected layers characterized by elastic properties. At a distance, an arbitrary dynamic load acts on the half-space, which causes oscillations in the embedded structure, and the sensor system registers the response. The problem of assessing the dynamic stress-strain state (DSSS) is solved using Fourier transforms with the principle of limiting absorption. As an example, the behavior of an embedded massive structure of an underground pedestrian crossing under the influence of a dynamic surface source on a multilayer medium is considered, as well as instrumental support of the sensor system. The solution in the form of stress, strain and displacement fields is obtained and compared with the experimental data. The frequency-dependent characteristics of the system are determined and the possibility of determining the DSSS by a shock pulse is shown.

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Layered composite and contact layer. Normal separation and transversal strength

Cited by 7 publications

References 6 publications

Layered composite and contact layer. Effective modulus of elasticity

Layered composite and contact layer. Effective modulus of elasticity

Merged contact layer in adhesion mechanics

Structural Monitoring of Underground Structures in Multi-Layer Media by Dynamic Methods

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