Finite Element Surface Layer Inheritable Condition Residual Stresses Model in Surface Plastic Deformation Processes

Mahalov, Maksim; Blumenstein, Valeriy

doi:10.1088/1757-899x/126/1/012004

Cited by 15 publications

(5 citation statements)

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“…Within the framework of the developed theory of the mechanics of technological inheritance, a model of a hardened body was proposed, implemented for the method of surface plastic deformation [16]. Theoretical studies were carried out using FEM in a flat setting, according to which the process was simulated in the plane of feed, passing through the axis of rotation of the workpiece being processed; accepted material model -elasticplastic with hardening [17][18][19][20].…”

Section: Theoretical Studiesmentioning

confidence: 99%

Simulation and Calculation of Residual Stresses in Mining Machines Components

2018

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Technologies of surface plastic deformation (SPD) provide a hardening effect and create compressive residual stresses in the surface layer of mining machine parts. This leads to a significant increase in the limit of endurance and fatigue cyclic life, increases the life in fretting conditions, improves the quality of assembly joints fit, etc. Very complex are both the physical nature of the occurrence and the estimation of residual stresses, since the machining processes are related to complex nonmonotonic types of loading. The study shows the relevance of the development of computational methods for determining residual stresses in the processes of hardening treatment of critical surfaces of mining machine parts. At the same time, the design and development of experimental nondestructive express methods based on the determination of various physical parameters (acoustic, magnetic noise, coercive force, etc.) are relevant and promising. A model of the process is developed and numerical calculations of the residual stresses arising during the SPD treatment are carried out. The results of the calculations are in good agreement with the experimental data.

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Section: Theoretical Studiesmentioning

confidence: 99%

Simulation and Calculation of Residual Stresses in Mining Machines Components

2018

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“…On the basis of the works devoted to the account of technological inheritance (TN) in the processes of cutting, surface plastic deformation and operational fatigue loading, [18][19][20] finite element modeling (FEM) of the stress-strain state of the surface layer of metal after processing by the MRroller is carried out. Modeling and analysis of the problem in Ansys took place in several stages.…”

Section: Researchesmentioning

confidence: 99%

The Study of Multiradius Roller Running Process

Krechetov

Mitrofanova

2019

MATEC Web Conf.

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The results of theoretical and experimental studies of the surface of the sample of steel 45 after surface plastic deformation (SPD) with multi-radius roller (MR-roller) is shown. The goal of this study is to expand the technological capabilities of the method of SPD through the use of a new design of the deforming tool developed at the Department of Engineering Technology of KuzSTU. The advantage of the MR-roller (Patent RU № 2557377) over the traditional tool for SPD (single-radius roller) is the possibility of creating a large hydrostatic pressure in the deformation zone, without destroying the surface layer of the processed material. The research technique included finite element modeling (FEM), microhardness measurement, metallographic studies of the sample structure. As a result of the study, some regularities of the process of hardening by a multi-radius tool with high hydrostatic pressure and a large number of quasi-monotonic deformation sites were revealed. The results indicate a significant hardening without metal destruction and the formation of nanoscale grains, which allows to improve the properties of rolled products in the application of high operating loads.

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“…The components' failure was attributed to the residual stresses that negatively affected their durability [ 8 , 9 , 10 ]. Previously, the fatigue life prediction was completed based on strain signals obtained from a coil spring [ 11 , 12 , 13 , 14 , 15 ] and a lower arm [ 16 , 17 ] separately.…”

Section: Introductionmentioning

confidence: 99%

Automotive suspension component behaviors driven on flat and rough road surfaces

Putra

Husaini

Ikbal

2021

Heliyon

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The objective of this study is to identify the behavior of the car suspension components subjected to road surface contours. Strain signals were measured by installing a strain gauge at the critical area of the coil spring and lower arm. The car was driven on a flat and rough road surface with speeds of 30-40 km/h and 10-20 km/h, respectively. According to the fatigue life assessments based on the strain-life approach, it was found that when the car was driven on the rough road, the components received higher stresses, contributing to a shorter fatigue life. The fatigue life of the coil spring when being driven on the rough road was 1,248 cycles to failure, which was more than 14 times shorter when being driven on the flat road, with 19,060 cycles to failure. Meanwhile the fatigue life of the lower arm being driven on the rough surface was 3,580 cycles to failure, which was almost 3,328 times shorter when being driven on the flat road, with 11,914,000 cycles to failure. The useful life of the coil spring was more than 625 times lower than the lower arm when driven on the flat road, whereas when driven on the rough road, the useful life of the coil spring was almost 3 times lower than the lower arm. In conclusion, the coil spring will fail more than 2 times faster than the lower arm. This is because the contour of the road surfaces provide a vertical load, directly working the coil spring which reduces the load vertically, while the lower arm functions to hold the load when turning.

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Finite Element Surface Layer Inheritable Condition Residual Stresses Model in Surface Plastic Deformation Processes

Cited by 15 publications

References 0 publications

Simulation and Calculation of Residual Stresses in Mining Machines Components

Simulation and Calculation of Residual Stresses in Mining Machines Components

The Study of Multiradius Roller Running Process

Automotive suspension component behaviors driven on flat and rough road surfaces

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