Journal ArticleDOI
Influence of Flexible Coating on the Limit Equilibrium of a Spherical Shell with Meridional Crack
TLDR
In this paper, the authors studied the problem of tension of a spherical shell reinforced by a flexible coating and weakened by a meridional crack and determined the stressed state near the crack tip and the distribution of the hinge reaction over the coating.Abstract:
We study the problem of tension of a spherical shell reinforced by a flexible coating and weakened by a meridional crack. The coating is modeled by a hinge connecting the faces of the cut on one of the face surfaces of the shell. The stressed state near the crack tips and the distribution of the hinge reaction over the coating are determined by the method of singular integral equations. The limit state of the shell is analyzed with regard for the bounded strength of the coating.read more
Citations
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A Technology of Hydrocarbon Fluid Production Intensification by Productive Stratum Drainage Zone Reaming
TL;DR: In this paper, the authors proposed a new technology for fluid production intensification, in particular hydrocarbons, which is implemented via significant increasing of the local wellbore diameter in the interval, where the productive stratum is present.
Journal ArticleDOI
Microstructure and Wear Characterization of the Fe-Mo-B-C—Based Hardfacing Alloys Deposited by Flux-Cored Arc Welding
Michael E. Bembenek,Pavlo Prysyazhnyuk,Thaer Shihab,Ryszard Machnik,Olexandr Ivanov,L. Ya. Ropyak +5 more
TL;DR: In this paper , an analysis of common reinforcement methods of machine parts and theoretical bases for the selection of their chemical composition were carried out, including the development of the chemical composition of tungsten-free hardfacing alloys based on the Fe-Mo-B-C system and hardfacing technology and the investigation of the microstructure and the mechanical properties of the developed hardface alloys.
Journal ArticleDOI
Development of Analytical Model of Threaded Connection of Tubular Parts of Chrome-Plated Metal Structures
Journal ArticleDOI
Stress Analysis in Damaged Pipeline with Composite Coating
TL;DR: In this article, the authors studied the distribution of stresses near damage in the form of axial surface cracks in a pipeline reinforced with a spiral-wound composite coating and applied the homogenization method to determine the effective elastic characteristics of a structurally anisotropic layered package.
Journal ArticleDOI
Multiclass Level-Set Segmentation of Rust and Coating Damages in Images of Metal Structures
Michael E. Bembenek,T.S. Mandziy,Iryna Ivasenko,Olena Berehulyak,Roman Vorobel,Zvenomyra Slobodyan,L. Ya. Ropyak +6 more
TL;DR: The combined detection of coating and rust damages on painted metal structures through the multiclass image segmentation technique is described and the efficiency of the approach is demonstrated on authentic images of coated surfaces.
References
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Journal ArticleDOI
Cylindrical and spherical shells with cracks
Fazil Erdogan,J. J. Kibler +1 more
TL;DR: Meridional crack problem for cylindrical and spherical shells solved for uniform membrane load and bending moment, obtaining stress intensity components as mentioned in this paper, for spherical shells with uniform membrane loads and bending moments.
Book
Fracture : a topical encyclopedia of current knowledge
TL;DR: A.A. Griffith and G.P. Cherepanov as discussed by the authors proposed a Fracture Concept based on the Three-Term Elastic-Plastic Asymptotic Expansion at the Near-Crack Tip Stress Field.
Journal ArticleDOI
Influence of a Flexible Coating on the Strength of a Shallow Cylindrical Shell with Longitudinal Crack
TL;DR: In this article, a cylindrical shell containing a longitudinal crack and strengthened by a flexible coating is modeled by a hinge connecting the faces of a notch on one face of the shell.
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