Abstract This paper provides a comprehensive evaluation of crucial performances hydrodynamic journal bearings subject to inherent uncertainties from non-probabilistic perspective. Uncertainties can arise for various reasons such as the evolving service environment, manufacturing errors and assembling imperfections. An efficient non-intrusive frame named Chebyshev interval finite difference meth...

Filigree lattice structures are sensible to geometrical imperfections and the scatter of material parameters which all depend on stability manufacturing process. The aim this study is analyze these effects for polymer incorporate them in a finite element model robust design. Micrographs structure slices show smaller diameter vertical struts. Basic mechanical tests bulk exhibit tension–compressi...

Heritage masonry structures are often modelled as dry-jointed structures. On the one hand, it may correspond to reality where initial mortar was weak, missing, or has disappeared through time because of erosion and lixiviation. other this modelling approach reduces complexity studied problem, both from an experimental theoretical/numerical point views, while being conservative. Still, for purpo...

In this paper the effect of random geometric imperfections on the critical load of isotropic, thin-walled, cylindrical shells under axial compression with rectangular cutouts is presented. Second moment characteristics of geometric imperfections are estimated by data of available measurements, a simulation procedure based on the Karhunen-Loève expansion is applied for generating realizations of...

Presented are 24 non-dimensional buckling curves to estimate the strengths of Fibre-Reinforced Polymer (FRP) square plates having four simply supported edges and subjected in-plane uniaxial uniform compression. The constructed by authors from a parametric numerical analysis using ABAQUS® software with changing variables for: material properties; initial geometrical imperfections; laminate lay-u...

Geometrical imperfection, which is generally a result of manufacturing process and service conditions, plays crucial role in load-bearing capacity shell structures. This study presents numerical on knockdown factors cylindrical shells as torsional Mode-I type geometric imperfections under compressive loads. The deformation patterns obtained from liner bifurcation analysis (LBA) for shape are us...