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finite element methods

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Published: 01 June 2016
Fig. 3.3 Lagrangian-based finite-element method simulation of particle impact, showing (a) the initial configuration and boundary conditions, (b) simulated splat shapes for a copper particle impinging a copper substrate, (c) plastic strain profile, and (d) flow stress profile along the radial More
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Published: 01 October 2011
Fig. 4 Example of a finite element method (FEM) network for calculation of the stress-strain field under a sharp indenter. Source: Ref 21 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040091
EISBN: 978-1-62708-300-3
... Abstract There are numerous approximate methods, both analytical and numerical, for analyzing forging processes. None are perfect because of the assumptions made to simplify the mathematical approach, but all have merit. This chapter discusses the slab, upperbound, and finite element methods...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040237
EISBN: 978-1-62708-300-3
... Abstract This chapter discusses the use of finite-element methods for modeling cold forging processes. The discussion covers process modeling inputs, such as geometric parameters, material properties, and interface conditions, and includes several application examples. cold forging...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540001
EISBN: 978-1-62708-309-6
... on to analyze the stress state of load-bearing members, pressurized tubes, and pin-loaded lugs, accounting for the effect of geometric discontinuities, such as cutouts, fillets, and holes, as well as cracks. It also explains how finite element methods are used to solve problems involving complex geometric...
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Published: 01 August 2012
Fig. 4.11 Comparison of punch diameters predicted by experience-based and finite-element method (FEM)-assisted methods More
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Published: 01 August 2012
Fig. 4.12 Thickness distribution in the final part predicted by experienced-based and finite-element method (FEM)-assisted methods More
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Published: 01 August 2012
Fig. 4.13 Comparison of punch corner radii predicted by experience-based and finite-element method (FEM)-assisted methods More
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Published: 01 August 2012
Fig. 4.7 Flow chart to determine the design parameters of the first forming stage for part B. FEM, finite-element method. Source: Ref 4.6 More
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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 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500073
EISBN: 978-1-62708-317-1
... the number of forming stages in a multistep deep drawing problem. Kim et al. ( Ref 4.8 ) carried out tool design analysis for multistep drawing using the finite-element method (FEM). In these studies, only design improvements in existing multistep tooling were carried out. Case Study I: Progressive Die...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500051
EISBN: 978-1-62708-317-1
.... finite element method forming tools process simulation sheet metal forming springback UNTIL RECENTLY, the design of metal forming tools was based mainly on knowledge gained through experience and expensive trial-and-error processes. However, today the metal forming industry is making use...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320049
EISBN: 978-1-62708-332-4
... for the Von Mises criteria. As shown, the Von Mises criteria show a region that is nearly 15% larger than for the Tresca criteria, and the Von Mises criteria are preferred for designing ductile castings such as steel and ductile iron. 5.4.4 Finite Element Analysis The FEA is a numerical method...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400105
EISBN: 978-1-62708-316-4
... of key process parameters including the draw ratio, material properties, geometry, interface conditions, equipment operating speed, and tooling. It then walks through the steps involved in predicting stress, strain, and punch force using the slab method and finite element analysis and presents...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500289
EISBN: 978-1-62708-317-1
... be processed. Materials that are brittle can also be processed. Future developments of this process appear to include: Lower-cost rivets, tools, and equipment Finite-element method simulations and calculations Lower joining forces; accessibility from one side New rivet shapes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500179
EISBN: 978-1-62708-317-1
... to the bending radius, t is the tube wall thickness, t o is the initial tube wall thickness, and θ is the degree of bend. For a complex bending operation, the finite-element method will provide a more accurate thickness distribution. Figure 9.14 shows the thickness distribution on the middle cross section...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500157
EISBN: 978-1-62708-317-1
... of Optimum Process Parameters to Form a Rectangular Part Geometry by Sheet Hydroforming with Die (SHF-D) Process Using Finite Element Method,” Master’s thesis, The Ohio State University, Columbus, OH, 2005 8.25 Groche P. , Huber R. , Dorr J. , and Schmoeckel D. , Hydromechanical...
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
... of these programs makes them better suited to jobbing foundries where many different parts need to be processed and computation time is an issue. On the other hand, sophisticated FEM (Finite Element Method) and FDM (Finite Difference Method) programs are based upon the simultaneous performance of complex heat...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500133
EISBN: 978-1-62708-317-1
... Abstract Hot stamping is a forming process for ultrahigh-strength steels (UHSS) that maximizes formability while minimizing springback. This chapter covers several aspects of hot stamping, including the methods used, the effect of process variables, and the role of finite-element analysis...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540215
EISBN: 978-1-62708-309-6
... with stress profiles. It also describes how material-related factors, load history, corrosion, and temperature affect crack growth rates, and discusses the steps involved in life assessment. corrosion-fatigue damage tolerance analysis finite element method residual strength stress-intensity factor...