Extended Subloading Surface Model Incorporating Elastic Boundary Concept

Tsutsumi, Sadami; Toyosada, Masahiro; Hashiguchi, Koichi

doi:10.2208/journalam.9.455

Cited by 44 publications

(14 citation statements)

References 18 publications

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“…The elasto-plastic behaviour was investigated with a plasticity model based on the subloading surface model, and extended to include the cyclic damage concepts [1][2][3][4]. A detailed explanation of the model features is beyond the scope of this paper, and the reader is referred to Ref.…”

Section: Elasto-plastic Modelmentioning

confidence: 99%

“…Previous works carried out by the authors [1][2][3][4][10][11][12][13][14][15], focused the attention on steel components; in this study, we extend the field of investigations to the aluminium alloy A5083-O.…”

Section: Elasto-plastic Modelmentioning

confidence: 99%

“…The constitutive equations of the phenomenological model in [1][2][3][4] were implemented via user subroutine for the commercial code Abaqus (ver. 6.14-4).…”

Section: Fe Modelmentioning

confidence: 99%

“…Among fatigue failure processes, the prediction of fatigue initiation as a series of damage accumulation and crack initiation is one of the most challenging issues. For the purpose of describing and evaluating the mechanical fatigue processes of materials, a phenomenological plasticity model is proposed [1][2][3][4]. This model is based on a cyclic plasticity model [5][6][7][8][9] and has been extended to describe the behaviour of materials, especially steel, and applied to several case studies in low and high cycle fatigue life regions.…”

Section: Introductionmentioning

confidence: 99%

“…In order to characterize the crack initiation life, it is important to give a precise description of the elastoplastic behaviour, which was here investigated by [1][2][3][4][10][11][12][13][14][15]. In addition, the criteria for the fatigue crack initiation was defined based on the strain ranges.…”

Section: Introductionmentioning

confidence: 99%

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Prediction of fatigue crack initiation life of aluminium alloy joints using cyclic elasto-plasticity FEM analysis

2018

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Abstract. Finite element analyses (FEA) are particularly useful for investigating fatigue problems since it is possible to carry out elasto-plastic simulations for any configuration and to predict the material behaviour for a large number of loading cycles. This study aims to investigate the fatigue life for Al-Mg alloy A5083-O joints by means of numerical simulations. The Proposed method needs to give a precise description of the elasto-plastic behaviour of the alloy together with an appropriate definition of the criteria for the fatigue crack initiation. In this paper, the elasto-plastic behaviour of the A5083-O alloy was investigated by FE analyses. On the other hand, the fatigue crack initiation criterion is provided based on strain ranges observations. In detail, the finite element analyses focused the attention on the study of the service life of a butt-weld join.

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Section: Elasto-plastic Modelmentioning

confidence: 99%

Section: Elasto-plastic Modelmentioning

confidence: 99%

“…The constitutive equations of the phenomenological model in [1][2][3][4] were implemented via user subroutine for the commercial code Abaqus (ver. 6.14-4).…”

Section: Fe Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Prediction of fatigue crack initiation life of aluminium alloy joints using cyclic elasto-plasticity FEM analysis

2018

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References

2012

Introduction to Finite Strain Theory for Continuum Elasto‐Plasticity

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A return mapping algorithm for elastoplastic and ductile damage constitutive equations using the subloading surface method

Fincato

Tsutsumi

2017

Numerical Meth Engineering

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In this paper is presented a return mapping algorithm for an elastoplastic/damage model that couples the constitutive equations of an unconventional plasticity model with the phenomenological description of ductile damage in the continuum damage mechanics framework. This approach combines the advantages of describing the mechanical property degradation by using the Lemaitre model with the realistic accumulation of plastic deformation in cyclic mobility problems from the subloading surface model. Most of the damage models for ductile failure focus on monotonic loading conditions, whereas the present model aims to extend the investigation to cyclic loading and low‐cycle fatigue problems. A cutting‐plane algorithm is adopted to describe the material behavior that considers both isotropic and kinematic hardening laws. Two simple numerical studies show that the elastoplastic and damage model is implemented correctly, displaying a quadratic rate of convergence for local equilibria and precise solutions, even for large‐prescribed strain increments.

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Extended Subloading Surface Model Incorporating Elastic Boundary Concept

Cited by 44 publications

References 18 publications

Prediction of fatigue crack initiation life of aluminium alloy joints using cyclic elasto-plasticity FEM analysis

Prediction of fatigue crack initiation life of aluminium alloy joints using cyclic elasto-plasticity FEM analysis

References

A return mapping algorithm for elastoplastic and ductile damage constitutive equations using the subloading surface method

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