Modeling the Bauschinger effect for sheet metals, part I: theory

Chun, B.K.; Jinn, J.T.; Lee, J.K.

doi:10.1016/s0749-6419(01)00046-8

Cited by 192 publications

(79 citation statements)

References 36 publications

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“…Other researchers studied the influence of different parameters such as: blank profile (You-Min Huang, 2005) and Bauschinger effect (Chun, Jinn and Lee, 2002) on the final angle of bent components.…”

Section: Introductionmentioning

confidence: 99%

Bending force and spring-back in v-die-bending of perforated sheet-metal components

Farsi¹,

Arezoo²

2011

J. Braz. Soc. Mech. Sci. & Eng.

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Section: Introductionmentioning

confidence: 99%

Bending force and spring-back in v-die-bending of perforated sheet-metal components

Farsi¹,

Arezoo²

2011

J. Braz. Soc. Mech. Sci. & Eng.

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“…This is the case for all the papers cited hereabove dealing with incremental type postulates of plasticity, and also those considering some extensions of previous works (Chen andWang 2002, Cleja-Tigoiu 2003), and those dealing with modelling of different effects in plasticity (Chun et al 2002, Chiarelli et al 2003, Kang et al 2003, Kaczmarek 2003, Zhang and Lee 2003, Stoughton 2002. This is also the case for papers dealing with more general frameworks than plasticity, for instance, rate-independent dissipative materials (Houlsby and Purzin 2000), damage processes (Taylor et al 2002, Brünig 2002, Gupta and Burgström 2002, Naboulsi and Palazotto 2003, rate-dependent deformations (Henry and Haslach 2000, Gurtin 2003, Krempl and Khan 2003, Scheidler and Wrighte 2003, Haupt and Kersten 2003, and more general frameworks of dissipative processes (Ziegler 1983).…”

Section: Introductionmentioning

confidence: 63%

A constitutive inequality in plasticity involving left-hand and right-hand rates

Pouya¹

2004

International Journal of Plasticity

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An incremental inequality for elastic-plastic materials involving right-hand (forward) and left-hand (backward) stress and strain rates is presented. This inequality is demonstrated as a theorem for standard elastic-plastic materials having a symmetric hardening matrix and also for generalized standard materials (Halphen and Nguyen 1975). It imposes some restrictions on the stress and strain rate discontinuities of these materials. Some applications of this inequality to deformation models of crystals and to micro-macro models are given. It is shown that this inequality generalizes some constitutive inequalities in plasticity and in particular the bi-incremental form of the normality flow rule (Hill 1967(Hill , 1968b. It includes and generalizes also some results of the Petryk (1989) inequality. Finally, it is shown that this inequality can be adopted as a postulate for elastic-plastic materials and that, in this case, it synthesizes the postulates of symmetry of the elastic compliant tensor, normality flow rule and, for models containing a hardening matrix and normal internal variables, the local symmetry of this matrix.

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“…The disk modulus Young is E disk =6.896 × 10 3 F/UL 2 , and it's 10 times stiffer than the block but they have the same Poisson coefficient v=0. 35. We use a penalty formulation which the coefficient is ε N= 5 × 10 3 F/UL 2 .…”

Section: Ironing Problemmentioning

confidence: 99%

“…For more details of this example we can refer to [33][34][35]. The geometrical data are presented in (Figure 30).…”

Section: Simulation Of Drawbeads In Sheet Metal Formingmentioning

confidence: 99%

2d Frictional B-Spline Smoothed Mortar Contact Problems Part II: Resolution Phase

Kallel¹,

Bouabdallah²

2017

J Appl Mech Eng

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We detailed in this paper three formulations for the resolution of a contact problem by mortar method. The penalty method is a simple technique which does not introduce new unknowns which can increase the size of the system to be solved. But this formulation suffers of conditioning problems especially when the penalty coefficient becomes very high. The Lagrange multipliers method is more accurate than the penalty formulation. The multiplier λ N represents in the contact surface the exact value of the normal contact effort. This approach requires additional variables which are the Lagrange multiplier in the contact interface nodes. The augmented Lagrange method is a combination between the penalty formulation and the Lagrange multipliers method. The contact constraints are applied by a Lagrange multiplier approached without increasing the problem size. The penalty coefficient in this method has less influence on the quality of the result and the robustness of the solution than in the penalty formulation.

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Modeling the Bauschinger effect for sheet metals, part I: theory

Cited by 192 publications

References 36 publications

Bending force and spring-back in v-die-bending of perforated sheet-metal components

Bending force and spring-back in v-die-bending of perforated sheet-metal components

A constitutive inequality in plasticity involving left-hand and right-hand rates

2d Frictional B-Spline Smoothed Mortar Contact Problems Part II: Resolution Phase

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