Evaluation of average load in axial crushing of circular tubes in consideration of strain hardening effect

Kuniharu Ushijima; Dai Heng Chen; Kenichi Masuda; Shigeyuki Haruyama

doi:10.1299/kikaia.72.864

Evaluation of average load in axial crushing of circular tubes in consideration of strain hardening effect

Kuniharu Ushijima^*, Dai Heng Chen, Kenichi Masuda, Shigeyuki Haruyama

^*Corresponding author for this work

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

In this paper, elastoplastic crushing behavior of circular tubes under axial compressive loading is studied by using nonlinear finite element analysis software MSC.Marc. In particular, effects of strain hardening on the average crushing load P_ave in axial collapse are investigated. It is found that the average load Pave depends on the scale of strain-hardening, and the theoretical result of P_ave for rigid perfectly plastic material cannot be used to evaluate the load P_ave with strain-hardening material. So in order to take into consideration the strain hardening effect on the average load P_ave, we propose an energy equivalent flow stress σ_flow defined by the value of average effective plastic strain ε̄ _p.eq which arises in one folded wrinkle, and evaluate the average load P_ave by using σ_flow instead of yield stress σ_y. This approximate evaluation agrees well with the experimental result.

Original language	English
Pages (from-to)	864-871
Number of pages	8
Journal	Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume	72
Issue number	6
DOIs	https://doi.org/10.1299/kikaia.72.864
State	Published - 2006/06

Keywords

Axial Col-lapse
Buckling
Circular Tubes
FEM
Finite Deformation Theory
Plasticity

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1299/kikaia.72.864

Cite this

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title = "Evaluation of average load in axial crushing of circular tubes in consideration of strain hardening effect",

abstract = "In this paper, elastoplastic crushing behavior of circular tubes under axial compressive loading is studied by using nonlinear finite element analysis software MSC.Marc. In particular, effects of strain hardening on the average crushing load Pave in axial collapse are investigated. It is found that the average load Pave depends on the scale of strain-hardening, and the theoretical result of Pave for rigid perfectly plastic material cannot be used to evaluate the load Pave with strain-hardening material. So in order to take into consideration the strain hardening effect on the average load Pave, we propose an energy equivalent flow stress σflow defined by the value of average effective plastic strain {\=ε} p.eq which arises in one folded wrinkle, and evaluate the average load Pave by using σflow instead of yield stress σy. This approximate evaluation agrees well with the experimental result.",

keywords = "Axial Col-lapse, Buckling, Circular Tubes, FEM, Finite Deformation Theory, Plasticity",

author = "Kuniharu Ushijima and Chen, {Dai Heng} and Kenichi Masuda and Shigeyuki Haruyama",

year = "2006",

month = jun,

doi = "10.1299/kikaia.72.864",

language = "英語",

volume = "72",

pages = "864--871",

journal = "Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A",

issn = "0387-5008",

publisher = "Japan Society of Mechanical Engineers",

number = "6",

}

Evaluation of average load in axial crushing of circular tubes in consideration of strain hardening effect. / Ushijima, Kuniharu; Chen, Dai Heng; Masuda, Kenichi et al.
In: Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, Vol. 72, No. 6, 06.2006, p. 864-871.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Evaluation of average load in axial crushing of circular tubes in consideration of strain hardening effect

AU - Ushijima, Kuniharu

AU - Chen, Dai Heng

AU - Masuda, Kenichi

AU - Haruyama, Shigeyuki

PY - 2006/6

Y1 - 2006/6

N2 - In this paper, elastoplastic crushing behavior of circular tubes under axial compressive loading is studied by using nonlinear finite element analysis software MSC.Marc. In particular, effects of strain hardening on the average crushing load Pave in axial collapse are investigated. It is found that the average load Pave depends on the scale of strain-hardening, and the theoretical result of Pave for rigid perfectly plastic material cannot be used to evaluate the load Pave with strain-hardening material. So in order to take into consideration the strain hardening effect on the average load Pave, we propose an energy equivalent flow stress σflow defined by the value of average effective plastic strain ε̄ p.eq which arises in one folded wrinkle, and evaluate the average load Pave by using σflow instead of yield stress σy. This approximate evaluation agrees well with the experimental result.

AB - In this paper, elastoplastic crushing behavior of circular tubes under axial compressive loading is studied by using nonlinear finite element analysis software MSC.Marc. In particular, effects of strain hardening on the average crushing load Pave in axial collapse are investigated. It is found that the average load Pave depends on the scale of strain-hardening, and the theoretical result of Pave for rigid perfectly plastic material cannot be used to evaluate the load Pave with strain-hardening material. So in order to take into consideration the strain hardening effect on the average load Pave, we propose an energy equivalent flow stress σflow defined by the value of average effective plastic strain ε̄ p.eq which arises in one folded wrinkle, and evaluate the average load Pave by using σflow instead of yield stress σy. This approximate evaluation agrees well with the experimental result.

KW - Axial Col-lapse

KW - Buckling

KW - Circular Tubes

KW - FEM

KW - Finite Deformation Theory

KW - Plasticity

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U2 - 10.1299/kikaia.72.864

DO - 10.1299/kikaia.72.864

M3 - 学術論文

AN - SCOPUS:33748319350

SN - 0387-5008

VL - 72

SP - 864

EP - 871

JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A

JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A

IS - 6

ER -

Evaluation of average load in axial crushing of circular tubes in consideration of strain hardening effect

Abstract

Keywords

ASJC Scopus subject areas

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