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8th Edition of

International Conference on Materials Science and Engineering

March 10-12, 2025 | Rome, Italy

Materials 2023

Vladislav Bogdanov

Speaker at Materials Science and Engineering 2023 - Vladislav Bogdanov
Progressive Research Solutions, Australia
Title : About problem of plane strain state of two-layer body in dynamic elastic-plastic formulation

Abstract:

The design of composite and reinforced or armed materials is a requirement of the modern level of production and life. Many methods of calculation and design of such materials are successfully used. In this article , for the design of composite and rein-forced materials, a technique for solving dynamic contact problems in more precise an elastic-plastic mathematical formulation is used. To consider the physical nonlinearity of the deformation process, the method of successive approximations is used, which makes it possible to reduce the nonlinear problem to a solution of the sequences of linear problems. In contrast to the traditional plane strain, when one normal stress is equal to a certain constant value, for a more accurate description of the deformation of the sample, taking into account the possible increase in longitudinal elongation, we present this normal stress as a function that de-pends on the parameters that describe the bending of a prismatic body that is in a plain strain state. The problem of a plane strain state of a beam made from the composite reinforced two layers material is being solved. The reinforced or armed material consists of two layers: the upper (first) thin layer of solid steel and the lower (second) main layer of glass. Glass is a non-crystalline, often transparent amorphous solid, that has widespread practical and technological use in the modern industry. The most familiar types of manufactured glass are "silicate glasses" based on the chemical compound silica (silicon dioxide, or quartz). Glass has high strength and is not affected by the pro-cesses of aging of the material, corrosion, and creep. In addition, this material is cheap and widely available. Glass can be strengthened, for example, in a melt quenching process. If the cooling is fast enough (relative to the characteristic crystallization time), then crystallization is prevented, and instead the disordered atomic configuration of the supercooled liquid is frozen into a solid state. This increases the strength properties of the glass. The reinforced composite beam is rigidly linked to an absolutely solid base and on which an absolutely solid impactor acts from above in the centre on a small area of initial contact.

Audience take away:

  • Solution of plane strain state problem in elastic-plastic mathematical formulation
  • Simulation of the impact of hard body on elastic base
  • Determination of strain-stress state of the composite two layers material

Biography:

I’ve studied at the Mathematical Department of Odessa National University, Ukraine. In the S.P. Timoshenko Institute of Mechanics of National Academy of Sciences of Ukraine (NANU) I made doctoral work “An impact of fine elastic shells on an elastic half-space”. From 2001 to 2005 I worked as Senior Research Associate in the E.O. Paton Institute of Electricwelding of NANU. I’ve worked as an Associate Professor at the Academy of Municipal Administration and at the National Transport University, Kyiv, Ukraine, since 2011. In 2013 I migrated to Australia where I’ve opened my own company Progressive Research Solutions.

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