Approximate analytical solutions in the analysis of elastic structures of complex geometry

Goloskokov, Dmitriy P.; Matrosov, Alexander V.

doi:10.1063/1.5034688

Cited by 3 publications

(1 citation statement)

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“…The solution was represented as series in Papkovich-Fadle eigenfunctions whose coefficients were found in an explicit form by using functions biorthogonal to the Papkovich-Fadle eigenfunctions. A method of analytical decomposition for analysis plane structures of a complex configuration was presented in [2]. For each part of the structure in the form of a rectangle all the components of the stress-strain state were constructed by the superposition method.…”

Section: Introductionmentioning

confidence: 99%

On the Stress State of the Semi-Strip with a Longitudinal Crack

Vaysfeld¹,

Zhuravlova²

2018

J. Model. Optim.

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The stress state of the elastic semi-strip is investigated in the paper. The lateral sides of the semi-strip are fixed and the semi-strip’s short edge is under the mechanical load. The longitudinal crack is located inside the semi-strip. The problem is reduced to the one-dimensional problem with the help of Fourier sin-, cos- transformation, which was applied directly to the Lame’s equilibrium equations and the boundary conditions. The one-dimensional problem is formulated is a vector form. Its solution is constructed with the help of the matrix differential calculation and the Green matrix-function, which was constructed in the bilinear form. The solution of the problem is reduced to the solving of three singular integral equations. The first equation in this system contains two fixed singularities in its kernel. To consider them the corresponding transcendental equation is constructed, and its roots are found. The special generalized method is applied to solve the system of singular integral equations. The stress intensity factors are calculated.

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Section: Introductionmentioning

confidence: 99%