Ivan Belmas

@dstu.dp.ua

Head of the Department of Mechanical Engineering Technologies and Engineering, Doctor of Technical Sciences, Professor
Dniprovsk State Technical University

Ivan Belmas


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https://researchid.co/i_belmas

RESEARCH, TEACHING, or OTHER INTERESTS

Engineering, Mechanical Engineering, Mechanics of Materials, Industrial and Manufacturing Engineering
23

Scopus Publications

Scopus Publications

  • Substantiation of Indirect Control of Flat Rubber-Tire Traction Body’s Cable Breaks
    I. V. Belmas, O. I. Bilous, G. I. Tantsura, A. V. Shvachka, S. V. Chumak, et al.
    Strength of Materials, 2025
  • Influence of Cable Design on Stress State of Elastic Shell in Elastomer-Cable Rope
    Ivan Belmas, Dmytro Kolosov, Olena Bilous, Hanna Tantsura, Serhii Onyshchenko
    Key Engineering Materials, 2025
    Elastomer-cable ropes (ECR) can be used as tractive and transporting elements in mine hoisting installations, powerful conveyors, or as stay ropes in permanent structures. The operating conditions and design of such ropes may differ in various conditions; however, the composite structure of ropes has its unique advantages in industrial applications. Article purpose is determining the influence of cable design on a stress state of elastic shell in a elastomer-cable rope. Article methodology is in numerical calculation using CAD and an analytical method used in strength of materials. Dependency of a stress-strain state is established for a elastomer-cable rope (belt) shell, which is loaded by a force evenly distributed among the cables, considering helical strand shape and periodical placement of cables with opposite twisting directions in a rope (belt). Energy loss values due to cable and elastomer-cable rope design are established. The scientific novelty of the article is in establishing that a helical strand shape of cables causes a twisting moment (torque) that is proportional to a part of an internal loading force on cables, which is transmitted by strands, a sine of inclination angle of helical strands and a distance between centers of strands cross-sections and cable axis. Stresses in the elastic shell decrease when cable placement spacing increases and does not exceed 1.7 cable diameters. Practical significance of the article is in establishing the dependency of a stress state of elastic shell in a elastomer-cable rope on rope and cable design, which allows taking into account this phenomenon during the rope design phase, increase of accuracy of determining its stress-strain state and reliability during operation in mine hoisting installations, powerful conveyors or permanent structures.
  • Influence of Reinforcement Breakage on Tractive Capacity of Composite Elastomer-Cable Tractive Element
    Dmytro Kolosov, Ivan Belmas, Hanna Tantsura, Olena Bilous, Serhii Onyshchenko
    Key Engineering Materials, 2025
    Composite elastomer-cable tractive elements can be used in mine hoisting, conveyor transportation, or as stay ropes in permanent structures. The working conditions of a rope depend on the application of a machine where it is used. Composite rope design provides particular advantages in industrial utilization of ropes, however raises the issues of predicting their stress state and reliability during operation in various loading conditions. Article purpose is in determining a dependency of stress-strain state of a composite elastomer-cable tractive element on a breakage (breakages) location scheme of reinforcing elements. Article methodology is in analytical solution of a model using methods of mechanics of layered composite materials with layers of increased rigidity connected by elastic layers. Mathematical models of a stress-strain state of composite elastomer-cable tractive element on breakage (breakages) location scheme of reinforcing elements are formulated and dependencies are established. The scientific novelty of the article is in establishing that extreme values of stress-strain states indicators of butt joints for a step-like scheme do not depend on the amount of cables in a rope, provided that there are at least six cables. In case of breakages in continuity of several cables, in several cross-sections, edge disturbances are localized both along the length and in adjacent cables. Tangential stresses in a rubber layer of a butt joint for a step-like scheme take place, practically, only in the rubber located between the discontinuities of the adjacent cables. Qualitative character of dependencies of tangential stresses coincides with a character of distribution of tensile forces in cables. At the same time, the largest internal forces and stresses in a butt-joint connection for a step-like scheme occur in the corresponding elements closest to belt edge. Practical significance of the article is in that a force concentration coefficient in butt joints for a step-like scheme is established. The established feature of a dependency of tensile forces of side cables and stresses in an elastic material that connects it to the adjacent one in the butt joint for a step-like scheme indicates a possibility to ensure a condition of equality of safety margins of an elastic interlayer and the most loaded cables, by selecting the lengths of the side cables in the connection. The actual loads acting on the lifting mechanism and the parameters of the lifting system can be taken into account when setting the boundary conditions for solving the models suggested in the article.
  • Flat Composite Tractive-Carrying and Transporting Elements of Industrial Use Tractive-Carrying and Transporting Elements of Industrial Use
    Foundations of Materials Science and Engineering, 2025
  • Flat Composite Tractive-Carrying and Transporting Elements of Industrial Use
    Ivan Vasylyovych Belmas, Dmytro Leonidovych Kolosov, Serhii Valeriyovych Onyshchenko, Olena Ivanivna Bilous, Hanna Ivanivna Tantsura
    Foundations of Materials Science and Engineering, 2025
  • Stress-Strain State Analysis of Layered Composite Materials with Localized Layer Breakage
    Dmytro Kolosov, Ivan Belmas, Olena Bilous, Hanna Tantsura, Serhii Onyshchenko, et al.
    Key Engineering Materials, 2025
    Research purpose is in establishment of dependencies for parameters of a stress-strain state of a layered composite material with an arbitrary but finite amount of layers and a local breakage in continuity of the outermost layer. Research methodology is in construction of a mathematical model of interaction of hard and soft layers considering given arbitrary amount of layers and with a damaged hard layer and analytical solution of the model using methods of mechanics of composite materials. A character of stress redistribution in layers of a composite material with a local breakage of the outermost layer is established. A breakage in continuity of a hard layer leads to distortion of cross-sections of a sample. The damaged layer has larger displacements than the other ones. The uniform distribution of external loads among the layers is disturbed. Disturbance of a stress-strain state is localized both along the sample and along its thickness. Damage to the outermost layer leads to an increase in the tensile load of the adjacent layer by more than 60 % of the average load on layers. The two layers closest to the damaged one are loaded with a force that exceeds their average total load by almost 80 %. The breakage of the middle layer leads to smaller disturbances. The nature of local stress disturbances also depends on the amount of layers in a sample. As the total amount of layers increases, the extreme forces occurring in a sample with a damaged layer decrease to almost constant values if the amount of layers is at least ten. Scientific novelty is in establishing the dependencies for stress-strain state indicators on structural parameters of a composite tractive element with a local breakage of the outermost layer. The linear formulation of the problem and the principle of superposition make it possible to use the obtained dependencies in a case of applying force to one layer and fixing others. The obtained solutions allow determining a stress-strain state of a sample of layered structure and create conditions for implementing justified solutions regarding the conditions and permissibility of using belts of layered structure with layers damaged during operation, thus ensuring the safety of their use and making the most of their technical resource.
  • Justification of ways to restore tractive capacity of one-layer composite stay rope
    Ivan Belmas, Dmytro Kolosov, Serhii Onyshchenko, Olexandr Dolgov, Olena Bilous, et al.
    Iop Conference Series Earth and Environmental Science, 2025
    Article purpose is to justify a possibility for partial restoration of tractive capacity lost due to continuity breakages in reinforcing cables of a composite one-layer stay rope (elastomer-cable belt or rope). Possible low-cost ways to perform partial restoration of tractive capacity of elastomer-cable rope lost due to continuity breakages of its reinforcing elements are justified. It is established that the distribution of extreme internal loading forces on cables of a composite rope with cable diameter of 8.25 mm is decreasing and approaching uniform values with an increase in length of a removed cable part. The removal length is assumed to increase up to two meters and is measured between cross-sections of an operational cable breakage and a second artificial cable breakage. Mechanical properties and rope design affect only the length of a rope part with uneven stress distribution. Accordingly, they affect an expedient distance between real and artificial cable breakages. Practical significance of the article is in justifying a method for partial restoration of tractive capacity lost due to continuity breakages in reinforcing cables of a composite rope. This allows extending service life of an elastomer-cable rope without replacing its part, thereby reducing operating costs of production.
  • Stress-strain state of a composite stay rope constructed of periodically connected stripes of considerable length
    Ivan Belmas, Dmytro Kolosov, Olena Bilous, Hanna Tantsura, Serhii Onyshchenko, et al.
    Iop Conference Series Earth and Environmental Science, 2025
    Article purpose is in establishing stress-strain state features of a flat composite stay rope constructed of separate periodically connected elastomer-cable stripes of considerable length. Influence mechanism of continuity breakages of stripes along a stay rope length on the area size of local disturbance of a stress-strain state from local influence on a stay rope is established. The scientific novelty is in establishing that the absence of mechanical connection of stripes in a rope constructed of glued elastomer-cable stripes due to an increase in length of an area of manifestation of local disturbances affects both the stress-strain state of a stay rope in an area of stripe connection absence and beyond it, including in the event of a continuity breakage of a limited amount of cables. Practical significance of the article is in a possibility of stay rope production by periodically connecting elastomer-cable stripes in one plane, which also allows the production of ropes of greater strength on existing equipment without significant modernization.
  • Stress state of elastic shell of standard sample in process of cable tear out testing
    Ivan Belmas, Dmytro Kolosov, Olena Bilous, Hanna Tantsura, Serhii Onyshchenko
    Iop Conference Series Earth and Environmental Science, 2024
    Article purpose is establishment of a quantitative character for influence of structural parameters of a rubber-cable belt on tensile testing results of a standard belt sample and influence of structural parameters on distribution of stresses in a butt-joint connection. Article methodology is in model construction, stress state determination for elastic material of deformed shape located between cables of a sample by methods of linear theory of elasticity and in obtaining parameters of a stress-strain state of an elastic shell of a standard sample for cable tear out testing in a closed form. Influence character of geometric parameters of a rubber-cable belt on tensile testing results of a standard belt sample is established and it allows considering parameters during determining maximum stresses in elastic shell of a belt butt-joint connections. Influence character of a stress-strain state of a standard sample on geometric parameters of a belt is established. The results make it possible to determine a distribution of shear stresses in elastic shell of a belt in butt-joint connections considering the structure of connections based on testing the standard samples. This increases the safety of usage of butt-joint connections of rubber-cable belts and increases their lifecycle.
  • Influence of Breakages of Reinforcing Elements of a Composite Orthotropic Stay Rope on Its Stress-Strain State
    Ivan Belmas, Dmytro Kolosov, Serhii Onyshchenko, Olena Bilous, Hanna Tantsura, et al.
    Key Engineering Materials, 2024
    The purpose of research is to justify a calculation method for a stay rope of composite fiber structure with a breakage in fiber continuity. Research methodology is in constructing and solving a deformation model of a composite fiber stay rope with continuity breakage of one of its fibers. The calculation method of a stress-strain state of a stay rope of composite fiber structure considering the breakage of one of its fibers is established. The scientific novelty of research is in determining that the length of manifestation of a local disturbance of a stress-strain state of composite stay rope is proportional to a square root of a ratio of tensile modulus of a reinforcing element material and shear modulus of an elastic material that connects them. The practical value of the research is in that the calculation method allows reasonable prediction of a tractive capacity loss of a stay rope as a result of breakage of any of its reinforcing elements. The known value of residual tractive capacity allows reasonable selection of a safety margin for a stay rope, which ensures a sufficient level of reliability of a cable-stayed bridge.
  • Stress-Strain State of Composite Stay Rope for Suspending Permanent Structures and their Components
    Ivan Belmas, Dmytro Kolosov, Olena Bilous, Hanna Tantsura, Serhii Onyshchenko, et al.
    Key Engineering Materials, 2024
  • A Model of Interaction of Rigid Fibers in an Orthotropic Composite Rope
    Ivan Belmas, Dmytro Kolosov, Olena Bilous, Hanna Tantsura, Serhii Onyshchenko, et al.
    Key Engineering Materials, 2024
  • Strength of a Rubber Cable Stay with Defects in its Connection to a Structure
    I. V. Belmas, O. I. Bilous, H. I. Tantsura, A. V. Shvachka, Yu. Yu. Hupalo, et al.
    Strength of Materials, 2023
  • Influence of Nonlinear Shear Modulus Change of Elastomeric Shell of a Composite Tractive Element with a Damaged Structure on its Stress State
    Ivan BELMAS, Dmytro KOLOSOV, Serhii ONYSHCHENKO, Olena BILOUS, Hanna TANTSURA
    Inzynieria Mineralna, 2023
  • Development of a System for Continuous Automatic Monitoring of the Cable Rope Condition
    I. V. Belmas, O. I. Bilous, G. I. Tantsura, A. V. Shvachka
    Strength of Materials, 2022
  • STRESS STATE OF THE GRINDING TOOL LOADED WITH TANGENTIAL FORCE
    K. S Zabolotnyi, I. V Belmas, O. I Bilous, H. I Tantsura, T. O Tantsura
    Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, 2022
  • DETERMINATION OF EFFECTIVE ENERGY CAPACITY OF THE CONVEYOR WHEN TRANSPORTING DIFFERENT WASTE OF MECHANICAL TREATMENT
    Dmytro Chasov, Ivan Belmas, Viktor Vernyhora, Bogdan Kolyada
    Technology Audit and Production Reserves, 2020
  • Rigidity of elastic shell of rubber-cable belt during displacement of cables relatively to drum
    Ivan Belmas, Peter Kogut, Dmytro Kolosov, Volodymyr Samusia, Serhii Onyshchenko
    E3s Web of Conferences, 2019
  • Stress-strain state of rubber-cable tractive element of tubular shape
    I.V. Belmas, D.L. Kolosov, S.V. Onyshchenko
    Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, 2018
  • The stress-strain state of the stepped rubber-rope cable in bobbin of winding
    Technical and Geoinformational Systems in Mining School of Underground Mining 2011, 2011
  • Stress state of rubber-rope tapes during their random damages
    Problemy Prochnosti I Nadezhnos Ti Mashin, 1993
  • Use of electrical models for investigating composites
    L. V. Kolosov, I. V. Bel'mas
    Mechanics of Composite Materials, 1981
  • Effect of One-Sided Body Heating on the Axis Position of a Rotary Kiln.
    Tsement, 1975