| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Gorash, Yevgen
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Assessing the very high cycle fatigue behaviour and frequency effect of structural steel welds
- 2023Ultrasonic fatigue testing of structural steel S275JR+AR with insights into corrosion, mean stress and frequency effectscitations
- 2023Ultrasonic fatigue testing of structural steel welded joints
- 2021Investigation of S275JR+AR structural steel fatigue performance in very high cycle domain
- 2019New formulation of nonlinear kinematic hardening model, part IIcitations
- 2019New formulation of nonlinear kinematic hardening model, part Icitations
- 2018High cycle fatigue analysis in the presence of autofrettage compressive residual stresscitations
- 2018Fatigue and corrosion fatigue life assessment with application to autofrettaged partscitations
- 2017Consideration of weld distortion throughout the identification of fatigue curve parameters using mean stress correction
- 2017On cyclic yield strength in definition of limits for characterisation of fatigue and creep behaviourcitations
- 2017Implementation of plasticity model for a steel with mixed cyclic softening and hardening and its application to fatigue assessments
- 2016Effect of high temperature on structural behaviour of metal-to-metal seal in a pressure relief valve
- 2016Application of multiscale approaches to the investigation of sealing surface deformation for the improvement of leak tightness in pressure relief valvescitations
- 2016A comparative study of simulated and experimental results for an extruding elastomeric component
- 2014Safe structural design for fatigue and creep using cyclic yield strength
- 2014Cyclic yield strength in definition of design limits for fatigue and creepcitations
- 2013High-Temperature Inelastic Behavior of the Austenitic Steel AISI Type 316citations
Places of action
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article
New formulation of nonlinear kinematic hardening model, part I
Abstract
A new mathematical modelling framework for simulation of metal cyclic plasticity is proposed and experimental validation based on tension-compression cyclic testing of S355J2 low carbon structural steel presented over the two parts of this paper. The advantages and limitations of the stress-strain curve shape modelling given by "Armstrong and Frederick" type hardening rules are discussed and a new formulation for kinematic hardening is proposed for more accurate representation of the stress-strain dependence under cyclic loading conditions. The proposed model is shown to describe the shape of the stress-strain curve accurately under various different loading conditions. Transition effects occurring at loading reversals are incorporated through a new framework of Dirac delta functions. In addition to the yield surface, stress supersurfaces able to expand and instantly move to simulate a shift of stress-strain curves during loading reversals are determined. This also enables inclusion of the behavior of monotonic stress-strain curves with yield plateau deformation in one mathematical model. The influence of the first stress invariant on the shape of a stress-strain curve in tension and compression directions observed in many metals is incorporated into the kinematic hardening rule. The ability of the model to accurately describe transition from elastic to elastic-plastic deformation at small offset strain yield points naturally accounts for nonlinearity of an unloading stress-strain curve after plastic pre-strain. Development of the model to include mixed cyclic hardening/softening, ratcheting and mean stress relaxation is presented in a companion paper (Part II), which includes experimental validation of the modelling framework.