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

Volodymyr Okorokov; Tugrul Comlekci; Donald MacKenzie; Ralph van Rijswick; Yevgen Gorash

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

Volodymyr Okorokov, Tugrul Comlekci, Donald MacKenzie, Ralph van Rijswick, Yevgen Gorash

Mechanical And Aerospace Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

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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.

Original language	English
Title of host publication	Fatigue 2017 Proceedings of the 7th Engineering Integrity Society International Conference on Durability & Fatigue
Subtitle of host publication	Downing College, Cambridge, UK, 3-5 July 2017
Editors	P. Bailey, F. Berto, E.R. Cawte, P. Roberts, M.T. Whittaker, J.R. Yates
Place of Publication	Rutland, UK
Pages	72-81
Number of pages	10
Publication status	Published - 30 Jun 2017
Event	EIS Fatigue 2017: 7th Engineering Integrity Society International Conference on Durability & Fatigue - Downing College, Cambridge, United Kingdom Duration: 3 Jul 2017 → 5 Jul 2017 http://www.fatigue2017.com/

Conference

Conference	EIS Fatigue 2017
Abbreviated title	EIS Fatigue 2017
Country/Territory	United Kingdom
City	Cambridge
Period	3/07/17 → 5/07/17
Internet address	http://www.fatigue2017.com/

Keywords

autofrettage
compressive residual stress
plasticity
steel
cyclic softening
fatigue

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Okorokov-etal-Fatigue2017-Implementation-of-plasticity-model-for-a-steel-with-mixed-cyclicAccepted author manuscript, 1.86 MB

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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, 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).

Okorokov, Volodymyr ; Comlekci, Tugrul ; MacKenzie, Donald et al. / 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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title = "Implementation of plasticity model for a steel with mixed cyclic softening and hardening and its application to fatigue assessments",

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.",

keywords = "autofrettage, compressive residual stress, plasticity, steel, cyclic softening, fatigue",

author = "Volodymyr Okorokov and Tugrul Comlekci and Donald MacKenzie and {van Rijswick}, Ralph and Yevgen Gorash",

year = "2017",

month = jun,

day = "30",

language = "English",

isbn = "9780954436834",

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booktitle = "Fatigue 2017 Proceedings of the 7th Engineering Integrity Society International Conference on Durability & Fatigue",

note = "EIS Fatigue 2017 : 7th Engineering Integrity Society International Conference on Durability & Fatigue, EIS Fatigue 2017 ; Conference date: 03-07-2017 Through 05-07-2017",

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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 et al.

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 proceeding › Conference contribution book

TY - GEN

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

AU - Okorokov, Volodymyr

AU - Comlekci, Tugrul

AU - MacKenzie, Donald

AU - van Rijswick, Ralph

AU - Gorash, Yevgen

PY - 2017/6/30

Y1 - 2017/6/30

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.

KW - autofrettage

KW - compressive residual stress

KW - plasticity

KW - steel

KW - cyclic softening

KW - fatigue

UR - http://www.fatigue2017.com/

M3 - Conference contribution book

SN - 9780954436834

SP - 72

EP - 81

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

A2 - Bailey, P.

A2 - Berto, F.

A2 - Cawte, E.R.

A2 - Roberts, P.

A2 - Whittaker, M.T.

A2 - Yates, J.R.

CY - Rutland, UK

T2 - EIS Fatigue 2017

Y2 - 3 July 2017 through 5 July 2017

ER -

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

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

Abstract

Conference

Keywords

Access to Document

Other files and links

Fingerprint

APESA (H2020 MSCA EID)

New formulation of nonlinear kinematic hardening model, part I: a Dirac delta function approach

New formulation of nonlinear kinematic hardening model, part II: cyclic hardening/softening and ratcheting

Cite this

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

Abstract

Conference

Keywords

Access to Document

Other files and links

Fingerprint

Projects

APESA (H2020 MSCA EID)

Research output

New formulation of nonlinear kinematic hardening model, part I: a Dirac delta function approach

New formulation of nonlinear kinematic hardening model, part II: cyclic hardening/softening and ratcheting

Cite this