Tensile and compressive behaviour of S355 mild steel in a wide range of strain rates

Cadoni, Ezio; Forni, Daniele; Gieleta, Roman; Kruszka, Leopold

doi:10.1140/epjst/e2018-00113-4

Cited by 14 publications

(3 citation statements)

References 16 publications

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“…Similar relationships of the stress, strain and strain state for the given steel were obtained in the tests [ 22 ], where the research methodology was fully presented.…”

Section: Methodsmentioning

confidence: 87%

The Chosen Aspects of Skew Rolling of Hollow Stepped Shafts

2021

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The paper presents chosen aspects of the skew rolling process of hollow stepped products with the use of a skew rolling mill designed and manufactured at the Lublin University of Technology. This machine is characterized by the numerical control of spacing between the working rolls and the sequence of the gripper axial movement, which allows for the individual programming of the obtained shapes of parts such as stepped axles and shafts. The length of these zones and the values of possibly realizable cross-section reduction and obtained outlines are the subject of this research paper. The chosen results regarding the influence of the technological parameters used on the course of the process are shown in the present study. Numerical modelling using the finite element method in Simufact Forming, as well as the results of experimental tests performed in a skew rolling mill, were applied in the conducted research. The work takes into account the influence of cross-section reduction of the hollow parts and the feed rate per rotation on the metal flow mechanisms in the skew rolling process. The presented results concern the obtained dimensional deviations and changes in the wall thickness determining the proper choice of technological parameters for hollow parts formed by the skew rolling method. Knowledge about the cause of the occurrence of these limitations is very important for the development of this technology and the choice of the process parameters.

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“…Similar relationships of the stress, strain and strain state for the given steel were obtained in the tests [ 22 ], where the research methodology was fully presented.…”

Section: Methodsmentioning

confidence: 87%

The Chosen Aspects of Skew Rolling of Hollow Stepped Shafts

2021

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“…The samples used in the experiments were made of structural S355 steel. Due to its beneficial properties and low-cost production, S355 is widely used in modern industry branches such as civil engineering, offshore, shipbuilding, and automotive [27][28][29][30][31][32][33][34]. The chemical composition of S355 is as follows: Mn-1.45, Al-0.33, P-0.23, Si-0.21, C-0.17, S-0.08 [32].…”

Section: Methodsmentioning

confidence: 99%

Magnetic Recording Method (MRM) for Nondestructive Evaluation of Ferromagnetic Materials

et al. 2022

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This paper proposes and experimentally investigates a novel nondestructive testing method for ferromagnetic elements monitoring, the Magnetic Recording Method (MRM). In this method, the inspected element must be magnetized in a strictly defined manner before operation. This can be achieved using an array of permanent magnets arranged to produce a quasi-sinusoidal magnetization path. The magnetic field caused by the original residual magnetization of the element is measured and stored for future reference. After the operation or loading, the magnetic field measurement is repeated. Analysis of relative changes in the magnetic field (for selected components) allows identifying applied stress. The proposed research methodology aims to provide information on the steel structure condition unambiguously and accurately. An interpretation of the results without referring to the original magnetization is also possible but could be less accurate. The method can be used as a standard technique for NDT (Non-Destructive Testing) or in structural health monitoring (SHM) systems.

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“…In the numerical model the hardening effects were taken into account by considering the Johnson-Cook model [27], while the strain rate effects were taken into account by considering the Cowper-Symonds model [28]. These models are described by Equation ( 19), with the relevant values shown in Table 1 for the hardening parameters (B, θ) and for the strain rate parameters (D, q) [29,30]. In Equation (19), plastic stress, yield strength, plastic strain, and plastic strain rate are denoted by σ, A, ε pl , and .…”

Section: Case Studymentioning

confidence: 99%

Membrane Action of Cladding Subjected to Blast Loading and Effects on the Supporting Structure

Ioannou

Gantes

2021

Vibration

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A recent blast design trend is to properly select cladding characteristics in order to limit blast consequences on its supporting structure. In this context, it is worth noting that cladding components may exhibit significant membrane action, and its effects may be decisive for the supporting structure. The main focus of the present study was to examine these effects through two-step dimensionless SDOF analyses, aimed at reaching conclusions that would be applicable to a large variety of cladding/supporting structure arrangements. The results of these analyses are presented by employing the dynamic load factor, representing the maximum supporting structure displacement. It was found that cladding membrane action has adverse effects over its supporting structure, as it does not allow for extensive plastic dissipation and leads to higher support reactions. On the contrary, insignificant membrane action leads to lower dynamic load factor for the supporting structure. Thus, membrane behavior should be activated only as a safety backup action in order to prevent cladding failure. A case study of a typical cladding/supporting structure is presented to demonstrate and verify the proposed two-step SDOF analyses and the obtained results.

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Tensile and compressive behaviour of S355 mild steel in a wide range of strain rates

Cited by 14 publications

References 16 publications

The Chosen Aspects of Skew Rolling of Hollow Stepped Shafts

The Chosen Aspects of Skew Rolling of Hollow Stepped Shafts

Magnetic Recording Method (MRM) for Nondestructive Evaluation of Ferromagnetic Materials

Membrane Action of Cladding Subjected to Blast Loading and Effects on the Supporting Structure

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