Modelling the variation of the yield stress within the temperature range typical for cold and warm metal forming

Marciniak, Z.; Konieczny, A.

doi:10.1016/0378-3804(87)90004-0

Cited by 17 publications

(4 citation statements)

References 5 publications

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“…The developed model showed a good correlation between the predicted results and the experimental data. Marciniak and Konieczny [228], in their study, developed a model by taking into consideration the deformation history of a low carbon (<0.1% C) steel to predict its yield stress for a wide range of temperature and strain rates. They found the predicted model to be suitable for determining the yield stress of the material at high strain rates and temperature during the hot-working process.…”

Section: Numerical Modellingmentioning

confidence: 99%

Structure–Property Correlation and Constitutive Description of Structural Steels during Hot Working and Strain Rate Deformation

Prusty

Banerjee

2020

Materials

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The behaviour of plain carbon as well as structural steels is qualitatively different at different regimes of strain rates and temperature when they are subjected to hot-working and impact-loading conditions. Ambient temperature and carbon content are the leading factors governing the deformation behaviour and substructural evolution of these steels. This review aims at investigating the mechanical behaviour of structural (or constructional) steels during their strain rate (ranging from very low to very high) as well as hot-working conditions and subsequently establishing the structure–property correlation. Rate-dependent constitutive equations play a significant role in predicting the material response, particularly where the experiments are difficult to perform. In this article, an extensive review is carried out on the merits and limitations of constitutive models which are commonly used to model the deformation behaviour of plain carbon steels.

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Section: Numerical Modellingmentioning

confidence: 99%

Structure–Property Correlation and Constitutive Description of Structural Steels during Hot Working and Strain Rate Deformation

Prusty

Banerjee

2020

Materials

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“…We can distinguish cold bending in the ambient temperature, or bending at higher temperatures [hot bending, semi-hot bending or bending with preheating, (see e.g. Kocańda, 1998;Marciniak and Konieczny, 1987)], but in practice we can neglect temperature changes. From the practical point of view, it is possible to neglect all the thermal effects connected with temperature changes during bending.…”

Section: Aproximate Analytic Determination Of Stored Energy Values Inmentioning

confidence: 99%

Stored Energy of Plastic Deformation in Tube Bending Processes

Śloderbach¹,

Pająk²

2013

International Journal of Applied Mechanics and Engineering

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The paper presents an aproximate analytic method for determination of the stored energy of plastic deformation during cold bending of metal tubes at bending machines. Calculations were performed for outer points of the tube layers subjected to tension and compression (the points of maximum strains). The percentage of stored energy related to the plastic strain work was determined and the results were presented in graphs. The influence and importance of the stored energy of plastic deformation on the service life of pipeline bends are discussed.

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“…Among the first group [20,21], flow stress was modeled by divided into strain hardening and strain sofening stages and the relation ship between flow stress and microsture parameter like DRX fraction was established basen on both dynamic recovery and dynamic recystallization theory. For the second group, Kock [22] describe the temperature and strain rate dependence of flow stress by a dislocation density based physical model, and Marchiniak [23] developed a model incorporating deformation history by intoducing a concept of state stress σ w.…”

Section: A Mathmatical Modeling Approach and Its Applicationsmentioning

confidence: 99%

A Mathmatical Approach for Modeling Real Hot Forming Process Using Physical Simulation Results

Zhang

Song

Cheng

et al. 2008

MSF

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Recently, physical simulation has played a more and more important role in modeling hot forming process. However, difficulty still existed in simulating real hot forming process using physical simulation results directly for obvious difference in deformation history between physical simulation condition and real hot forming process. In this work, difference between physical simulation and real hot forming process was discussed and a mathmatical approach was proposed to model real hot forming process using physical simulation results. The main consideration of the method was to put physical simulation results into differential forms in order to take count in the contribution of deformation history (temperature and strain rate) at each incremental step. For the application of the approach, modeling of material flow stress, dynamical recrystallization including critical condition and recrystallziaton fraction, damage evolution and fracture criteria during real hot forming process were presented as examples, although experimental support was still needed for validation and further application.

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Modelling the variation of the yield stress within the temperature range typical for cold and warm metal forming

Cited by 17 publications

References 5 publications

Structure–Property Correlation and Constitutive Description of Structural Steels during Hot Working and Strain Rate Deformation

Structure–Property Correlation and Constitutive Description of Structural Steels during Hot Working and Strain Rate Deformation

Stored Energy of Plastic Deformation in Tube Bending Processes

A Mathmatical Approach for Modeling Real Hot Forming Process Using Physical Simulation Results

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