3D dynamic modeling of powder forming processes via a simple and efficient node-to-surface contact algorithm

Khoei, A.R.; Biabanaki, S.O.R.; Parvaneh, S.M.

doi:10.1016/j.apm.2012.03.010

Cited by 22 publications

(6 citation statements)

References 66 publications

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“…These meshes can be then conveniently used to formulate the contact interaction. Possibilities available in the literature are (but are not limited to): node‐to‐node interaction, 3‐5 node‐to‐surface interaction, 6,7 surface‐to‐surface interaction, 8,9 and beam‐to‐beam contact 10‐13 . These strategies usually adopt the concept of so‐called contact elements, which depend on the discretization level of FEM meshes that are frequently

{C}^0

.…”

Section: Introductionmentioning

confidence: 99%

Numerical strategy for solving general C¹‐continuous beam‐to‐beam contact problems

Júnior,

Gay Neto,

Wriggers

2023

Numerical Meth Engineering

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In the context of a multibody numerical environment, when aiming at representing the contact interaction between bodies one needs the inclusion of special mathematical formulations. They can be geometrically described as surface‐to‐surface or line‐to‐line contacts, for instance. The last one is usually the natural choice when addressing beam‐to‐beam contact. In the present work, a geometrically nonlinear structural formulation is combined with a beam‐to‐beam spline‐based contact formulation with a particular numerical strategy to address challenging contact problems. The numerical strategy consists of introducing criteria to evaluate, characterize and decide about the contact problem solutions. According to these criteria, a contact problem solution may be accepted, rejected, or proceed to a degeneration process (as a simplification of the original tentative for the geometric description). The main advantages of the proposed technique are the lack of special contact formulations for ill‐defined contact problems and the automatic switch between degenerated and nondegenerated scenarios. Therefore, one can naturally handle scenarios of pointwise or conformal contact, even in situations of transition between such categories along the model evolution. The adopted spline‐based formulation includes normal and tangential contact contributions. To test the proposed strategy, several pointwise and conformal contact examples are proposed.

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{C}^0

.…”

Section: Introductionmentioning

confidence: 99%

Numerical strategy for solving general C¹‐continuous beam‐to‐beam contact problems

Júnior,

Gay Neto,

Wriggers

2023

Numerical Meth Engineering

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“…For instance, in forming process, the relative displacement between the tool and work piece generates friction force which affects many aspects of the process including the density distribution, final shape, residual stresses and crack initiation. [6,7] Thus, understanding the frictional contact behavior plays a significant role in predicting the material response in many applications. Various algorithms for the numerical solutions of the contact problem are presented in the literature [8,9].…”

Section: Introductionmentioning

confidence: 99%

Modelling of cracks with frictional contact based on peridynamics

Lü

Oterkus

Öterkuş

et al. 2021

Theoretical and Applied Fracture Mechanics

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“…Basically, the discrete (micro) and continuum (macro) techniques are developed to model the powder compaction process [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…However in the continuum (macro) models, the use of appropriate plasticity models have been a great interest in modeling the micro-powder forming [6][7][8]. In nanoscale particles, the ratio of surface atoms to volume atoms is significantly considerable in comparison to the micro or macro-particles [9].…”

Section: Introductionmentioning

confidence: 99%

Compaction simulation of nano-crystalline metals with molecular dynamics analysis

et al. 2016

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Abstract. The molecular-dynamics analysis is presented for 3D compaction simulation of nano-crystalline metals under uniaxial compaction process. The nano-crystalline metals consist of nickel and aluminum nano-particles, which are mixed with specified proportions. The EAM pair-potential is employed to model the formation of nano-particles at different temperatures, number of nano-particles, and mixing ratio of Ni and Al nano-particles to form the component into the shape of a die. The die-walls are modeled using the Lennard-Jones inter-atomic potential between the atoms of nano-particles and die-walls. The forming process is model in uniaxial compression, which is simulated until the full-dense condition is attained at constant temperature. Numerical simulations are performed by presenting the densification of nano-particles at different deformations and distribution of dislocations. Finally, the evolutions of relative density with the pressure as well as the stress-strain curves are depicted during the compaction process.

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3D dynamic modeling of powder forming processes via a simple and efficient node-to-surface contact algorithm

Cited by 22 publications

References 66 publications

Numerical strategy for solving general C¹‐continuous beam‐to‐beam contact problems

Numerical strategy for solving general C¹‐continuous beam‐to‐beam contact problems

Modelling of cracks with frictional contact based on peridynamics

Compaction simulation of nano-crystalline metals with molecular dynamics analysis

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3D dynamic modeling of powder forming processes via a simple and efficient node-to-surface contact algorithm

Cited by 22 publications

References 66 publications

Numerical strategy for solving general C1‐continuous beam‐to‐beam contact problems

Numerical strategy for solving general C1‐continuous beam‐to‐beam contact problems

Modelling of cracks with frictional contact based on peridynamics

Compaction simulation of nano-crystalline metals with molecular dynamics analysis

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Product

Resources

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Numerical strategy for solving general C¹‐continuous beam‐to‐beam contact problems

Numerical strategy for solving general C¹‐continuous beam‐to‐beam contact problems