Implementation of plasticity model for a steel with mixed cyclic softening and hardening and its application to fatigue assessments

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

This paper presents a numerical modelling and experimental investigation of the cyclic plasticity behaviour of low carbon steel. In order to improve the accuracy of modelling the material response under cycling loading, a new set of internal variables is proposed. The developed plasticity model is applied to the problem of modelling compressive residual stress inducing methods which are based on a plastic overload of a material. A beneficial influence of induced compressive residual stress is demonstrated on a benchmark problem of autofrettage of a high pressure thick-walled cylinder. Numerical simulation of the cyclic plasticity problems and fatigue assessments are carried out by means of FEM in ANSYS Workbench with FORTRAN user-programmable subroutines for material model incorporating custom equations.
LanguageEnglish
Title of host publicationFatigue 2017 Proceedings of the 7th Engineering Integrity Society International Conference on Durability & Fatigue
Subtitle of host publicationDowning College, Cambridge, UK, 3-5 July 2017
EditorsP. Bailey, F. Berto, E.R. Cawte, P. Roberts, M.T. Whittaker, J.R. Yates
Place of PublicationRutland, UK
Pages72-81
Number of pages10
Publication statusPublished - 30 Jun 2017
EventEIS Fatigue 2017: 7th Engineering Integrity Society International Conference on Durability & Fatigue - Downing College, Cambridge, United Kingdom
Duration: 3 Jul 20175 Jul 2017
http://www.fatigue2017.com/

Conference

ConferenceEIS Fatigue 2017
Abbreviated titleEIS Fatigue 2017
CountryUnited Kingdom
CityCambridge
Period3/07/175/07/17
Internet address

Fingerprint

Plasticity
Hardening
Fatigue of materials
Compressive stress
Steel
Residual stresses
Subroutines
Low carbon steel
Plastics
Finite element method
Computer simulation

Keywords

  • autofrettage
  • compressive residual stress
  • plasticity
  • steel
  • cyclic softening
  • fatigue

Cite this

Okorokov, V., Comlekci, T., MacKenzie, D., van Rijswick, R., & Gorash, Y. (2017). Implementation of plasticity model for a steel with mixed cyclic softening and hardening and its application to fatigue assessments. In P. Bailey, F. Berto, E. R. Cawte, P. Roberts, M. T. Whittaker, & J. R. Yates (Eds.), Fatigue 2017 Proceedings of the 7th Engineering Integrity Society International Conference on Durability & Fatigue: Downing College, Cambridge, UK, 3-5 July 2017 (pp. 72-81). Rutland, UK.
Okorokov, Volodymyr ; Comlekci, Tugrul ; MacKenzie, Donald ; van Rijswick, Ralph ; Gorash, Yevgen. / Implementation of plasticity model for a steel with mixed cyclic softening and hardening and its application to fatigue assessments. Fatigue 2017 Proceedings of the 7th Engineering Integrity Society International Conference on Durability & Fatigue: Downing College, Cambridge, UK, 3-5 July 2017. editor / P. Bailey ; F. Berto ; E.R. Cawte ; P. Roberts ; M.T. Whittaker ; J.R. Yates. Rutland, UK, 2017. pp. 72-81
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abstract = "This paper presents a numerical modelling and experimental investigation of the cyclic plasticity behaviour of low carbon steel. In order to improve the accuracy of modelling the material response under cycling loading, a new set of internal variables is proposed. The developed plasticity model is applied to the problem of modelling compressive residual stress inducing methods which are based on a plastic overload of a material. A beneficial influence of induced compressive residual stress is demonstrated on a benchmark problem of autofrettage of a high pressure thick-walled cylinder. Numerical simulation of the cyclic plasticity problems and fatigue assessments are carried out by means of FEM in ANSYS Workbench with FORTRAN user-programmable subroutines for material model incorporating custom equations.",
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Okorokov, V, Comlekci, T, MacKenzie, D, van Rijswick, R & Gorash, Y 2017, Implementation of plasticity model for a steel with mixed cyclic softening and hardening and its application to fatigue assessments. in P Bailey, F Berto, ER Cawte, P Roberts, MT Whittaker & JR Yates (eds), Fatigue 2017 Proceedings of the 7th Engineering Integrity Society International Conference on Durability & Fatigue: Downing College, Cambridge, UK, 3-5 July 2017. Rutland, UK, pp. 72-81, EIS Fatigue 2017, Cambridge, United Kingdom, 3/07/17.

Implementation of plasticity model for a steel with mixed cyclic softening and hardening and its application to fatigue assessments. / Okorokov, Volodymyr; Comlekci, Tugrul; MacKenzie, Donald; van Rijswick, Ralph; Gorash, Yevgen.

Fatigue 2017 Proceedings of the 7th Engineering Integrity Society International Conference on Durability & Fatigue: Downing College, Cambridge, UK, 3-5 July 2017. ed. / P. Bailey; F. Berto; E.R. Cawte; P. Roberts; M.T. Whittaker; J.R. Yates. Rutland, UK, 2017. p. 72-81.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

TY - GEN

T1 - Implementation of plasticity model for a steel with mixed cyclic softening and hardening and its application to fatigue assessments

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N2 - This paper presents a numerical modelling and experimental investigation of the cyclic plasticity behaviour of low carbon steel. In order to improve the accuracy of modelling the material response under cycling loading, a new set of internal variables is proposed. The developed plasticity model is applied to the problem of modelling compressive residual stress inducing methods which are based on a plastic overload of a material. A beneficial influence of induced compressive residual stress is demonstrated on a benchmark problem of autofrettage of a high pressure thick-walled cylinder. Numerical simulation of the cyclic plasticity problems and fatigue assessments are carried out by means of FEM in ANSYS Workbench with FORTRAN user-programmable subroutines for material model incorporating custom equations.

AB - This paper presents a numerical modelling and experimental investigation of the cyclic plasticity behaviour of low carbon steel. In order to improve the accuracy of modelling the material response under cycling loading, a new set of internal variables is proposed. The developed plasticity model is applied to the problem of modelling compressive residual stress inducing methods which are based on a plastic overload of a material. A beneficial influence of induced compressive residual stress is demonstrated on a benchmark problem of autofrettage of a high pressure thick-walled cylinder. Numerical simulation of the cyclic plasticity problems and fatigue assessments are carried out by means of FEM in ANSYS Workbench with FORTRAN user-programmable subroutines for material model incorporating custom equations.

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BT - Fatigue 2017 Proceedings of the 7th Engineering Integrity Society International Conference on Durability & Fatigue

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Okorokov V, Comlekci T, MacKenzie D, van Rijswick R, Gorash Y. Implementation of plasticity model for a steel with mixed cyclic softening and hardening and its application to fatigue assessments. In Bailey P, Berto F, Cawte ER, Roberts P, Whittaker MT, Yates JR, editors, Fatigue 2017 Proceedings of the 7th Engineering Integrity Society International Conference on Durability & Fatigue: Downing College, Cambridge, UK, 3-5 July 2017. Rutland, UK. 2017. p. 72-81