3D Simulation of Stress-Strain State of Plasma Arc Surfacing by CAD/CAE Software Sysweld

2014 ◽  
Vol 1029 ◽  
pp. 1-7
Author(s):  
Rayna Dimitrova ◽  
Alexander Nedelchev ◽  
Antonio Nikolov
Keyword(s):  
Deformation Process ◽  
Strain State ◽  
3D Simulation ◽  
Visual Environment ◽  
Plasma Arc ◽  
Technological Parameters ◽  
State Distribution ◽  
Stress Strain ◽  
Stress Strain State ◽  
Cae Simulation

The deformation process during the plasma arc surfacing is analyzed by CAD/CAE software SysWeld under Visual Environment using 3D simulation. The aim of simulation is visualization of a temperature field and a stress-strain state distribution as resul ts of surfacing under typical technological parameters of plasma arc processing which could be used for education. Key w ords : CAD/CAE simulation , plasma arc surfacing , stress-strain state

scholarly journals Plastic Folding of Bar Stocks of Round and Barrel-Shaped Sections

2022 ◽  
Author(s):  
O.S. Zhelezkov
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Cross Sections ◽  
Deformation Process ◽  
Strain State ◽  
Stress Strain ◽  
Plastic Bending ◽  
Bending Angle ◽  
Element Modeling ◽  
Stress Strain State

Abstract. Research has been carried out on the process of plastic folding of bar stocks with round and barrel-shaped cross-sections. The dependence of the movement of the movable tool on the bending angle has been established. The force parameters of the deformation process and the stress-strain state in the bending workpiece are determined based on the results of finite element modeling of plastic bending.

scholarly journals Evaluation of the quality of three-layer steel bimetallic strips obtained on a unit of continuous casting and deformation

2021 ◽  
Vol 64 (10) ◽  
pp. 755-760
Author(s):  
O. S. Lekhov ◽  
M. M. Shevelev
Keyword(s):  
Continuous Casting ◽  
Deformation Process ◽  
Strain State ◽  
Steel Strip ◽  
Stress Strain ◽  
Steel 09G2s ◽  
Cladding Layer ◽  
Stress Strain State ◽  
Cladding Layers

Today there is an urgency of creating high-performance continuous processes for the production of bimetals. The article describes the main tasks of improving the quality of the materials under consideration. Two stages of the technology for producing steel three-layer bimetallic strips on the unit of a combined continuous casting and deformation process are considered. The authors give recommendations on the conduct of the technological process in order to obtain high-quality bimetallic strips on such unit. The problem statement is presented. The material considers initial data for determining the temperature of the steel base strip and the stress-strain state of the metals of the cladding layers and the strip in deformation center of a three-layer bimetallic ingot. A model for calculating and a method for solving problems of thermal conductivity and elastoplasticity are shown. Regularities of the temperature change of the main steel strip are given during its passage through the molten metal of the cladding layer. Stress-strain state of the metals of the main strip and cladding layers in the deformation center was determined when three-layer bimetallic steel strips were obtained on the unit of combined continuous casting and deformation process. The authors describe the values of compression of the main steel strip and mutual displacement of the layers during compression of the bimetallic ingot by the strikers. Regularities of the distribution of axial and tangential stresses are shown along the contact line of the cladding layer with the striker. The evaluation of the process of obtaining bimetal steel 09G2S - steel 13KhFA - steel 09G2S was made on a pilot unit for continuous casting and deformation. Microstructure of the main strip and cladding layers of a three-layer bimetallic steel strip is shown when a combined continuous casting and deformation process is obtained in one unit.

scholarly journals RESEARCH AND EXPERIMENTAL STUDIES OF STRESS-STRAIN STATE OF DISCRETE-CONTINUAL HARDENED MACHINE PARTS

2021 ◽  
pp. 5-21
Author(s):  
Oleg Veretelnik ◽  
Mykola M. Tkachuk ◽  
Serhii Kravchenko ◽  
Mariia Saverska ◽  
Serhii Kutsenko ◽  
...  
Keyword(s):  
Strain State ◽  
Experimental Studies ◽  
Technological Parameters ◽  
Stress Strain ◽  
Stress Strain State ◽  
Hardening Process ◽  
Contact Loads ◽  
Machine Parts ◽  
Keywords Stress ◽  
Strength And Durability

Research and experimental studies of stress-strain state of discrete-continual hardened machine parts are presented in this work. This hardening method is distinguished by incorporation of numerous hard spots into the surface layer of one of the bodies. Meanwhile the other part is covered by a continuous corundum layer. Correspondingly, a network of microchannels for lubricant is formed between the bodies. Furthermore the contact loads are intensified in the vicinity of the harder material in the discrete zones. As a result the strength and durability of the loaded parts is increased. The technological parameters of the hardening process have great impact on the resulting characteristics. In particular, this concern the shape of the discrete hardening zones and the material properties of the corundum layer. These factors were varied in stress-strain analyses of the contacting bodies. The dependence of the stress-strain state characteristics on the varied parameters was established. The justified recommendations regarding the technological parameters of the discrete-continual hardening have been developed. Keywords: stress-strain state,  discrete-continual hardening,  contact interaction, finite element method, contact pressure, machine parts

scholarly journals STRESS - STRAIN STATE OF THE LOCAL AREA IN THE BUILDING ELEMENT WITH STRUCTURAL DEFECT

2021 ◽  
Vol 28 (1) ◽  
Author(s):  
Victor Kolokhov ◽  
◽  
Mykola Savytskyi ◽  
Artem Sopilniak ◽  
◽  
...  
Keyword(s):  
Structural Defect ◽  
Deformation Process ◽  
Strain State ◽  
Construction Material ◽  
Local Area ◽  
Structural Defects ◽  
Structural Element ◽  
Stress Strain ◽  
Building Element ◽  
Stress Strain State

Evaluation of the building element technical state relies on verification calculations using estimated construction material properties. Physical and mechanical properties are estimated predominately by using non-destructive test methods. The accuracy of these methods is affected by the level of stress-strain state of the structural element and present structural defects. The variability of the concrete properties over time under constant loads is a determining factor for the durability and reliability of the structural element. The influence of the physical and mechanical characteristics of a construction material on the deformation process of the local area of the structural element adjacent to the structural defect has been investigated. The research has been performed on structural models using software systems "LIRA SAPR" and "SOLIDWORKS". A structural model having dimensions of 100 x 100 x 400 mm was used for the study. Materials of concrete grades C12/15 through C25/30 with corresponding properties have been used. Load parameters for modeling of the deformation process varied from 0.1 to 0.5 of the ultimate loads. Performed calculations made it possible to obtain fields of stress, deformation and displacement under different model parameters and stress levels.

scholarly journals INFLUENCE OF TECHNOLOGICAL PARAMETERS OF STEP FORMING ON STRESS-STRAIN STATE OF PIPE BILLET

2021 ◽  
pp. 63-68
Author(s):  
L. M. Gurevich ◽  
V. F. Danenko ◽  
S. P. Pisarev
Keyword(s):  
Finite Element ◽  
Strain State ◽  
Large Diameter ◽  
Technological Parameters ◽  
Stress Strain ◽  
Stress Strain State ◽  
One Step ◽  
Deformation Force ◽  
Kinetics Of ◽  
Longitudinal Seam

The stress-strain state in a pipe billet of longitudinal seam pipes of large diameter made of X70 steel has been studied by the methods of finite element modeling under various technological parameters. The kinetics of the change in the deformation force and reactions of the supports during one step of molding have been determined.

scholarly journals Investigation of the Stress-Strain State of Seamless Pipe in the Initial State

2014 ◽  
Vol 61 (4) ◽  
pp. 595-607 ◽  
Author(s):  
Jerzy Malachowski ◽  
Volodymyr Hutsaylyuk ◽  
Petr Yukhumets ◽  
Roman Dmitryenko ◽  
Grigorii Beliaiev ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Deformation Process ◽  
Strain State ◽  
Stable State ◽  
Seamless Pipe ◽  
Initial State ◽  
Stress Strain ◽  
The Real ◽  
Stress Strain State ◽  
Experimental Researches

Abstract Mechanical properties of the pipeline samples that had been cut in annular and axial directions were investigated. The methodology of modeling and calculation of the real stress-strain state was described. The stable state during in the deformation process was defined. The results of the experimental researches were used as a test variant during examination of pipe strength.

scholarly journals Method for determining technological parameters to repair pipeline with out-of-spec curvature

2020 ◽  
Vol 4 (2) ◽  
pp. 84-88
Author(s):  
Victor M. Varshitsky ◽  
◽  
Igor B. Lebedenko ◽  
Eldar N. Figarov ◽  
◽  
...  
Keyword(s):  
Strain State ◽  
Operating Conditions ◽  
Technological Parameters ◽  
Stress Strain ◽  
Line Pipe ◽  
Repair Work ◽  
Stress Strain State ◽  
Actual Operating ◽  
Simulation Results ◽  
Inspection Data

When performing in-line inspection of trunk pipelines, line pipe sections are detected with curvature exceeding the values required by specifications. To prepare a repair work project that entails bringing the pipeline into the standard conditions, it is necessary to determine the technological parameters of the repair. The corresponding technique is known for cases of moving an initially straight pipeline. The authors of the paper have developed the method for determining the technological parameters to repair pipeline with out-of-spec curvature of the axis. The method is based on simulation of pipeline deformation with the initial curvature of the axis, taking into account the actual operating conditions of the pipeline and in-line inspection data. Examples of calculations of repair technological parameters and stress-strain state of pipeline sections with out-of-spec curvature are given. The simulation results confirm the possibility for applying this method to assess the technological parameters of repair, the length of trench excavation, the size and limits of the pipeline additional burying or lifting, and to determine the stress-strain state of the pipeline section under repair during and after repair work.

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