Elastic-plastic endochronic constitutive model of 0Crl7Ni4Cu4Nb stainless steels

Jinquan Guo, Lianping Wu, Xiaoxiang Yang, Shuncong Zhong

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We presented an elastic-plastic endochronic constitutive model of 0Crl7Ni4Cu4Nb stainless steel based on the plastic endochronic theory (which does not need the yield surface) and experimental stress-strain curves. The key feature of the model is that it can precisely describe the relation of stress and strain under various loading histories, including uniaxial tension, cyclic loading-unloading, cyclic asymmetric-stress axial tension and compression, and cyclic asymmetric-stress axial tension and compression. The effects of both mean stress and amplitude of stress on hysteresis loop based on the elastic-plastic endochronic constitutive model were investigated. Compared with the experimental and calculated results, it is demonstrated that there was a good agreement between the model and the experiments. Therefore, the elastic-plastic endochronic constitutive model provides a method for the accurate prediction of mechanical behaviors of 0Crl7Ni4Cu4Nb stainless steel subjected to various loadings.

LanguageEnglish
Article number4396296
Number of pages6
JournalMathematical Problems in Engineering
Volume2016
DOIs
Publication statusAccepted/In press - 17 Jan 2016

Fingerprint

Stainless Steel
Constitutive Model
Constitutive models
Plastics
Stainless steel
Compression
Stress-strain curves
Hysteresis loops
Hysteresis Loop
Unloading
Cyclic Loading
Mechanical Behavior
Compaction
Curve
Prediction
Model
Experiments
Experiment

Keywords

  • constitutive models
  • elastoplasticity
  • stress analysis
  • stress-strain curves
  • unloading

Cite this

Guo, Jinquan ; Wu, Lianping ; Yang, Xiaoxiang ; Zhong, Shuncong. / Elastic-plastic endochronic constitutive model of 0Crl7Ni4Cu4Nb stainless steels. In: Mathematical Problems in Engineering. 2016 ; Vol. 2016.
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abstract = "We presented an elastic-plastic endochronic constitutive model of 0Crl7Ni4Cu4Nb stainless steel based on the plastic endochronic theory (which does not need the yield surface) and experimental stress-strain curves. The key feature of the model is that it can precisely describe the relation of stress and strain under various loading histories, including uniaxial tension, cyclic loading-unloading, cyclic asymmetric-stress axial tension and compression, and cyclic asymmetric-stress axial tension and compression. The effects of both mean stress and amplitude of stress on hysteresis loop based on the elastic-plastic endochronic constitutive model were investigated. Compared with the experimental and calculated results, it is demonstrated that there was a good agreement between the model and the experiments. Therefore, the elastic-plastic endochronic constitutive model provides a method for the accurate prediction of mechanical behaviors of 0Crl7Ni4Cu4Nb stainless steel subjected to various loadings.",
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Elastic-plastic endochronic constitutive model of 0Crl7Ni4Cu4Nb stainless steels. / Guo, Jinquan; Wu, Lianping; Yang, Xiaoxiang; Zhong, Shuncong.

In: Mathematical Problems in Engineering, Vol. 2016, 4396296, 17.01.2016.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Elastic-plastic endochronic constitutive model of 0Crl7Ni4Cu4Nb stainless steels

AU - Guo, Jinquan

AU - Wu, Lianping

AU - Yang, Xiaoxiang

AU - Zhong, Shuncong

PY - 2016/1/17

Y1 - 2016/1/17

N2 - We presented an elastic-plastic endochronic constitutive model of 0Crl7Ni4Cu4Nb stainless steel based on the plastic endochronic theory (which does not need the yield surface) and experimental stress-strain curves. The key feature of the model is that it can precisely describe the relation of stress and strain under various loading histories, including uniaxial tension, cyclic loading-unloading, cyclic asymmetric-stress axial tension and compression, and cyclic asymmetric-stress axial tension and compression. The effects of both mean stress and amplitude of stress on hysteresis loop based on the elastic-plastic endochronic constitutive model were investigated. Compared with the experimental and calculated results, it is demonstrated that there was a good agreement between the model and the experiments. Therefore, the elastic-plastic endochronic constitutive model provides a method for the accurate prediction of mechanical behaviors of 0Crl7Ni4Cu4Nb stainless steel subjected to various loadings.

AB - We presented an elastic-plastic endochronic constitutive model of 0Crl7Ni4Cu4Nb stainless steel based on the plastic endochronic theory (which does not need the yield surface) and experimental stress-strain curves. The key feature of the model is that it can precisely describe the relation of stress and strain under various loading histories, including uniaxial tension, cyclic loading-unloading, cyclic asymmetric-stress axial tension and compression, and cyclic asymmetric-stress axial tension and compression. The effects of both mean stress and amplitude of stress on hysteresis loop based on the elastic-plastic endochronic constitutive model were investigated. Compared with the experimental and calculated results, it is demonstrated that there was a good agreement between the model and the experiments. Therefore, the elastic-plastic endochronic constitutive model provides a method for the accurate prediction of mechanical behaviors of 0Crl7Ni4Cu4Nb stainless steel subjected to various loadings.

KW - constitutive models

KW - elastoplasticity

KW - stress analysis

KW - stress-strain curves

KW - unloading

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