A new development of four-point method to measure the electrical resistivity in situ during plastic deformation

Saberi, Saeid; Stockinger, Martin; Stoeckl, C.; Buchmayr, Bruno; Weiß, H.; Afsharnia, Reza; Hartl, Karin

doi:10.1016/j.measurement.2021.109547

Cited by 15 publications

(7 citation statements)

References 26 publications

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“…The samples and their position in the tube are shown in Figure 1. a previous study [15]. An overview on the test setup is shown in Figure 2.…”

Section: Methodsmentioning

confidence: 99%

“…Δρ thermal = ρ 0 αΔT (5) where 𝑅 0 , ρ 0 , ΔT and α are resistance and resistivity at room temperature, the change in temperature and the temperature coefficient of resistance respectively. The relationship between the electrical resistance, the specific resistance (resistivity) and the mechanical strain has been discussed in [15] in detail. Investigations of thermomechanical behaviour of metallic materials under uniaxial tensile test showed, that a temperature reduction occurs in the elastic region and thermal energy is generated due to plastic deformation [16,17].…”

Section: Theoretical Backgroundmentioning

confidence: 99%

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An experimental electro-thermo-mechanical characterization of plastic deformation of quenched and tempered pipe steel for oil country tubular goods

Saberi

Weiß²,

Winter³

et al. 2022

Preprint

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Development, manufacturing, and optimization of Oil Country Tubular Goods (OCTG) are strongly related to thermo-mechanical behavior of quenched and tempered pipe steels. Threaded pipe connections consist of a pipe end with external thread (pin) and coupling with the internal thread (box). They are manufactured on seamless pipes made of typical OCTG steel grades like P110. Introduced residual stresses in the threaded connections due to cold preforming process as well as tension/ compression and torsion make-up tests lead to material degradation of the pipe steel. The complex geometry of thread and difficult access to the thread surface make conventional methods for residual stress measurement impossible. In this study, in-situ measurement of the strain, the temperature and the electrical resistivity of steel P110 during electro-mechanical coupled uniaxial tensile test was performed. The electro-thermo-mechanical properties of the investigated material were determined using a Matlab® code. The presented experimental method could be used for the experimental in-situ measurement of local plastic strains in threaded connections under make- up tests. Inanition, the obtained results of this research such as electro-thermo-mechanical properties of investigated pipe steel could be applied for material modelling of pipe steels.

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“…The samples and their position in the tube are shown in Figure 1. a previous study [15]. An overview on the test setup is shown in Figure 2.…”

Section: Methodsmentioning

confidence: 99%

Section: Theoretical Backgroundmentioning

confidence: 99%

An experimental electro-thermo-mechanical characterization of plastic deformation of quenched and tempered pipe steel for oil country tubular goods

Saberi

Weiß²,

Winter³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…The determination of the strain in carbon fibres, using electrical resistance measurements is given by Todoroki et al 28 Another method, dealing with the damage accumulation during a fatigue process in the HCF-regime is proposed by Sun et al 29 Further studies on the relation between the electrical resistance and mechanical properties can be found in. [30][31][32][33][34][35][36][37] Most of the mentioned methods above require either an already existing S-N curve, or a large number of fatigue tests leading to increased time effort and costs. As a result, the need arises to extend the existing approaches with a process-orientated lifetime prediction.…”

Section: Introductionmentioning

confidence: 99%

“…Wu et al 27 used a combination of tensile and fatigue tests equipped with electrical and magnetic methods to generate trend S‐N curves in the HCF‐regime. The determination of the strain in carbon fibres, using electrical resistance measurements is given by Todoroki et al 28 Another method, dealing with the damage accumulation during a fatigue process in the HCF‐regime is proposed by Sun et al 29 Further studies on the relation between the electrical resistance and mechanical properties can be found in 30–37 …”

Section: Introductionmentioning

confidence: 99%

A nonlinear lifetime prediction method for un‐ and low alloyed steels by damage determination based on non‐destructive measurement techniques

Weber,

Maul,

Juner

et al. 2024

Fatigue Fract Eng Mat Struct

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Materials used in nuclear power plants are exposed to cyclic loading, which is why the understanding of fatigue behaviour is of great importance. Because of high time investments and resulting increased costs, Lifetime Prediction Methods, which significantly reduce the amount of specimen, have already been developed. Within this paper, the Lifetime Prediction Method MiDAcLifeincr is presented, which enables a determination of a trend S‐N curve in the High‐Cycle‐Fatigue‐regime based on only one fatigue test and the combination of conventional fatigue testing with NDT‐related measurement techniques. The process‐orientated monitoring of the cyclic deformation behaviour provides the basis for the time‐ and cost‐effective provision of fatigue data. Compared with previous methods, the consideration of variable loading is an essential aspect of the research application. The test material is a 20MnMoNi5‐5 steel, the results of which are extended to include other steels for validation reasons.

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“…For example, electrical resistance (ER) has been researched for a long time after the pioneering work of Matthiessen [4]. The relation between mechanical stress and ER has been constantly researched ever since [5][6][7][8][9][10][11][12][13], even in this decade [14][15][16]. ER has also been used for investigating the fatigue properties of conductive materials [17][18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Short-Time Fatigue Life Estimation for Heat Treated Low Carbon Steels by Applying Electrical Resistance and Magnetic Barkhausen Noise

Ziman

Raghuraman

et al. 2022

Materials

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Tensile tests and fatigue tests on differently heat-treated low carbon (non- and low-alloy) steels were conducted and accompanied by non-destructive electrical resistometric (ER) and magnetic Barkhausen noise (MBN) measuring devices, in order to establish an improved short-time fatigue life estimation method according to StressLife. MaRePLife (Material Response Partitioning) is the hereby proposed method for calculating S–N curves in the HCF regime, based on the partitioning of material responses acquired during the above-mentioned mechanical tests. The rules were set to make use of the information gathered from pre-conducted tensile tests, which helps to determine the parameters of two load increase tests (LIT) and two constant amplitude tests (CAT). The results of the calculated S–N curves were satisfactory and could be verified by more separately conducted fatigue tests on specimens under different material conditions.

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A new development of four-point method to measure the electrical resistivity in situ during plastic deformation

Cited by 15 publications

References 26 publications

An experimental electro-thermo-mechanical characterization of plastic deformation of quenched and tempered pipe steel for oil country tubular goods

An experimental electro-thermo-mechanical characterization of plastic deformation of quenched and tempered pipe steel for oil country tubular goods

A nonlinear lifetime prediction method for un‐ and low alloyed steels by damage determination based on non‐destructive measurement techniques

Short-Time Fatigue Life Estimation for Heat Treated Low Carbon Steels by Applying Electrical Resistance and Magnetic Barkhausen Noise

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