In typical Lamb wave simulation practices, effects of plate edge reflections are often not considered in order to simplify the wave signal interpretations. Methods that are based on infinite plates such as the semi-analytical finite element method is effective in simulating Lamb waves as it excludes the effect of plate edges. However, the inclusion of plate edges in a finite plate could render ...

The main purpose of the present paper is to compare two different kinds approaches in modeling deck a suspension bridge: first approach we look at as rectangular plate and second one beam for vertical deflections rod torsional deformations. Throughout this will refer model corresponding beam-rod model. In our discussion, observe that contains larger number elastic parameters if compared with is...

The values of reaction forces in the boiler supports are the basis for the dimensioning of bearing steel structure of steam boiler. In this paper, the application of the method of equivalent stiffness of membrane wall is proposed for the calculation of reaction forces. The method of equalizing displacement, as the method of homogenization of membrane wall stiffness, was applied. On the example ...

In this article, element free Galerkin method is used for static analysis of thin micro/nanoscale plates based on the nonlocal plate theory. The problem is solved for the plates with arbitrary boundary conditions. Since shape functions of the element free Galerkin method do not satisfy the Kronecker’s delta property, the penalty method is used to impose the essential boundary conditions. Discre...

A problem of an edge crack with a fracture process zone in semi-infinite orthotropic planes under the pure- and mixed-mode loading (I II modes) was studied. cohesive different lengths opening sliding modes (multiple zone) used to simulate zone. The smooth closure condition defines two modes. that is normal plate formulated terms integral equations for unknown displacement discontinuity along cr...

The preparation of orthotropic polymeric composite is described. Method based on curing the epoxy resin with nickel carbonyl nanoparticles (the content up to 35 vol.%) directly in magnetic field B ≈ 0.2 T. noticeable anisotropy elastic properties proved by measurements Yung's modulus disk and plate-shaped samples.

Fiber-reinforced laminated composites are frequently preferred in many engineering projects. With the development in production technology, the using of the fiber reinforced laminated composites has been increasing in engineering applications. In the production stage of the fiber-reinforced laminated composites, porosities could be occurred due to production or technical errors. After a level o...