Analysis of metal forming process based on meshless method

Chen, Jiun‐Shyan; Roque, Cristina Maria Oliveira Lima; Pan, Chunhui; Button, Sérgio Tonini

doi:10.1016/s0924-0136(98)00171-x

Cited by 80 publications

(39 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although in some studies the strong form of the problem is treated with collocation techniques [38][39][40], in the majority of the literature a Galerkin approximation based on the weak form is preferred. We refer to [41][42][43] where the RKPM is applied together with elastoplastic material models and to [44][45][46][47] where the NEM is employed and a viscoplastic behaviour of the material is assumed. A detailed analysis on the application of meshless methods to metal forming is provided in [48].…”

Section: Introductionmentioning

confidence: 99%

A stabilized formulation with maximum entropy meshfree approximants for viscoplastic flow simulation in metal forming

et al. 2014

View full text Add to dashboard Cite

The finite element method is the reference technique in the simulation of metal forming and provides excellent results with both Eulerian and Lagrangian implementations. The latter approach is more natural and direct but the large deformations involved in such processes require remeshing-rezoning algorithms that increase the computational times and reduce the quality of the results. Meshfree methods can better handle large deformations and have shown encouraging results. However, viscoplastic flows are nearly incompressible, which poses a challenge to meshfree methods. In this paper we propose a simple model of viscoplasticity, where both the pressure and velocity fields are discretized with maximum entropy approximants. The inf-sup condition is circumvented with a numerically consistent stabilized formulation that involves the gradient of the pressure. The performance of the method is studied in some benchmark problems including metal forming and orthogonal cutting.

show abstract

Section: Introductionmentioning

confidence: 99%

A stabilized formulation with maximum entropy meshfree approximants for viscoplastic flow simulation in metal forming

et al. 2014

View full text Add to dashboard Cite

show abstract

“…More recently, some effort has also been devoted to the solution of metal forming processes by means of mesh-free approaches [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38]. Referenced papers encompass the following operations: ring compression [19,20], upsetting [19][20][21][22][30][31][32][33], extrusion [21][22][23][24]30], sheet metal forming [25][26][27][28][29] and rolling [34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Simulation of bulk metal forming processes using the reproducing kernel particle method

Xiong

Liu

Cao

et al. 2005

Computers & Structures

View full text Add to dashboard Cite

“…Elastoplastic problem has been intensively investigated with the aid of numerical methods such as finite element method [6,7], meshfree method [8][9][10], boundary element method [11,12]. The implicit solution schemes were investigated.…”

Section: Introductionmentioning

confidence: 99%

Isogeometric analysis of linear isotropic and kinematic hardening elastoplasticity

Nguyen

Cong

et al. 2017

Vietnam J. Mech.

View full text Add to dashboard Cite

Abstract. Material nonlinearity is of great importance in many engineering problems. In this paper, we exploit NURBS-based isogeometric approach in solving materially nonlinear problems, i.e. elastoplastic problems. The von Mises model with linear isotropic hardening and kinematic hardening is presented, and furthermore the method can also be applied to other elastoplastic models without any loss of generality. The NURBS basis functions allow us to describe exactly the curved geometry of underlying problems and control efficiently the accuracy of approximation solution. Once the discretized system of non-linear equilibrium equation is obtained, the Newton-Raphson iterative scheme is used. Several numerical examples are tested. The accuracy and reliability of the proposed method are verified by comparing with results from ANSYS Workbench software.

show abstract

Analysis of metal forming process based on meshless method

Cited by 80 publications

References 12 publications

A stabilized formulation with maximum entropy meshfree approximants for viscoplastic flow simulation in metal forming

A stabilized formulation with maximum entropy meshfree approximants for viscoplastic flow simulation in metal forming

Simulation of bulk metal forming processes using the reproducing kernel particle method

Isogeometric analysis of linear isotropic and kinematic hardening elastoplasticity

Contact Info

Product

Resources

About