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FEM simulation

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040237
EISBN: 978-1-62708-300-3
... of correcting the flow stress, or determining approximately the error magnitude at high strain levels caused by inadequate lubrication (barreling), is to simulate the compression process by FEM using various friction factors ( Fig. 18.1c ) [ Altan et al., 2001 ]. By measuring the amount of barreling ( Fig...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040083
EISBN: 978-1-62708-300-3
... with corresponding computed data. It also includes an example in which flow stress and friction were measured in compressed aluminum rings and the results used to verify the accuracy of predicted values. FEM simulation flow stress friction inverse analysis verification 8.1 Introduction The finite...
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Published: 01 February 2005
Fig. 18.6 Incomplete filling of the dimples, as predicted by two-dimensional FEM simulations [ Hannan et al., 1999 ] More
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Published: 01 August 2012
Fig. 8.22 Punch force/punch stroke curves for different blank diameters in experiment (Exp) and finite element model (FEM) simulations More
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Published: 01 August 2012
Fig. 8.21 Punch force/punch stroke curves for different blank thickness values obtained in experiment (Exp) and finite element model (FEM) simulations More
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Published: 01 August 2012
Fig. 8.23 Punch force/punch stroke curves for different coefficients of friction, μ, obtained in experiment (Exp) and finite element model (FEM) simulations More
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Published: 01 August 2012
Fig. 8.18 Punch force/punch stroke curves obtained from finite element model (FEM) simulations and experiment (Exp) with lubricant (Lub A). COF, coefficient of friction. Source: Ref 8.15 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500073
EISBN: 978-1-62708-317-1
... forming stage for part B. FEM, finite-element method. Source: Ref 4.6 The simulation model used is shown in Fig. 4.8 . The geometry was modeled over a unit radian about the Z -axis due to the axisymmetric deformation mode. The sheet was meshed with an axisymmetric quadrilateral element...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500051
EISBN: 978-1-62708-317-1
... potential sources of failures; and improving part quality. Simulations can be effectively performed at various stages of design to support decision-making. 3.2 Commercial Codes for Forming Simulations The basic concept of the finite-element method (FEM) is one of discretization. The model...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040295
EISBN: 978-1-62708-300-3
... is simulated using FEM in order to estimate the tool stresses. The tool stress values are used to complete an elastic-plastic stress-strain analysis of the tooling using FEM. The stress-strain analysis is used to perform a damage analysis and estimate the number of cycles until fatigue fracture...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400105
EISBN: 978-1-62708-316-4
... by starting the FE simulation. FE Model of Round Cup Drawing and Comparison with Experiments Round cup drawing was simulated with PAMSTAMP, a commercially available FEM code. ASTM A1011 DS type-B material was used in both the simulations and the experiments ( Ref 8.15 ). The geometric model...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040193
EISBN: 978-1-62708-300-3
...-time. In order to optimize a process, the effect of the most important process parameters has to be investigated. Conducting experiments can be a very time-consuming and expensive process. It is possible to reduce the number of necessary experiments by using FEM-based simulation of metal forming...
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Published: 01 October 2011
Fig. 7 Normalized contact area, A FEM / A ( h ), according to finite element method simulation as a function of the ratio of the plastic residual depth, h p (after removal of the force) and the maximum indentation depth, h max . The gray area represents dependence on the work hardening More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.htpa.t53310167
EISBN: 978-1-62708-346-1
..., A FEM / A ( h ), according to finite element method simulation as a function of the ratio of the plastic residual depth, h p (after removal of the force) and the maximum indentation depth, h max . The gray area represents dependence on the work hardening behavior ( Ref 24 ). Fig. 2...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040067
EISBN: 978-1-62708-300-3
... Simulations: Effect of Friction in Isothermal Conditions for AISI 1035 (animations) Case A: Shear Friction (m) = 0 Case B: Shear Friction (m) = 0.1 Case C: Shear Friction (m) = 0.3 FEM Simulations: Effect of Friction in Nonisothermal Conditions for AISI 1035 (animations) Case A: Shear...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200133
EISBN: 978-1-62708-354-6
... method changes during the prototype sampling stage will be significantly reduced. It must be emphasized that the difficulty in generating FEM meshes for liquid flow simulations is generally greater than for solidification analysis as they require a minimum number of elements across wall section...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460067
EISBN: 978-1-62708-285-3
... Method The finite-element method (FEM) has been the most widely used method in the simulation of particle impact in cold spraying. Using this method, the geometry of the deforming particle as well as strain, stress, and temperature fields can be calculated and displayed for given impact velocities...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.9781627083003
EISBN: 978-1-62708-300-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040059
EISBN: 978-1-62708-300-3
... die. The detailed ring compression process was simulated using finite element model (FEM) package ALPID (a parent version of DEFORM ) [ SFTC, 2002 ]. The elements were generated such that there were two nodes having the exact locations as the two pairs of the thermocouples in real die for tracking...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500179
EISBN: 978-1-62708-317-1
... simulation formability tube bending tube hydroforming TUBE HYDROFORMING (THF) is a material-forming process that uses a pressurized fluid in place of a hard tool to plastically deform a given tubular material into a desired shape ( Fig. 9.1 ). At stage A, the tube is placed on the die cavity...