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finite-difference method

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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 February 2005
DOI: 10.31399/asm.tb.chffa.t51040091
EISBN: 978-1-62708-300-3
.... , “ Limitations, Applicability and Usefulness of Different Methods in Analyzing Forming Problems, ” Ann. CIRP , Vol 28 ( No. 2 ), 1979 , p 473 . [Avitzur, 1968] Avitzur B. , Metal Forming: Processes and Analysis , McGraw-Hill , 1968 . [Bathe, 1996] Bathe K.J. , Finite Element...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040083
EISBN: 978-1-62708-300-3
... of analytical code differentiation. This technique proved to be a good alternative to the finite difference method or analytical differentiation of the FEM code in conducting sensitivity analysis. As a result of research, the identification software CART (Computer Aided Rheology and Tribology) was introduced...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460067
EISBN: 978-1-62708-285-3
..., but as soon as it approaches or exceeds the sound velocity, the Nusselt number also becomes a function of the Ma p . The particle temperature calculations are performed numerically in parallel with the calculation of particle velocity, for example, using the finite-difference method. The 1-D...
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 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500073
EISBN: 978-1-62708-317-1
... 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. Process simulation using FEA and commercial software...
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 2012
DOI: 10.31399/asm.tb.smfpa.t53500289
EISBN: 978-1-62708-317-1
...-and-error experiments. However, some studies ( Ref 14.20 , 14.21 ) discuss the application of the finite-element method to optimize the mechanical crimping process, to enhance the performance of the assembly by determining the optimum process and geometrical parameters. The crimp quality, which...
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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500179
EISBN: 978-1-62708-317-1
... T. , Tube Hydroforming: State-of-the-Art and Future Trends , J. Mater. Process. Technol. , Vol 98 ( No. 1 ), Jan 15 , 2000 , p 25 – 33 10.1016/S0924-0136(99)00302-7 9.3 Jirathearanat S. , “Advanced Methods for Finite Element Simulations for Part and Process Design in Tube...
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 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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260029
EISBN: 978-1-62708-336-2
... Abstract This chapter provides an overview of the thermodynamics of extrusion. It begins by presenting a thermodynamic model of the extrusion process expressed in the form of finite difference equations. It then explains how the model accounts for multiple sources of heat generation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040059
EISBN: 978-1-62708-300-3
... heat transfer between objects be characterized. Thus, the numerical analysis, such as finite element method, can carry out quantitative calculations at the interface between the objects that are in contact. The interface heat transfer coefficient, h, for hot forging application, is measured...
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 December 2003
DOI: 10.31399/asm.tb.cfap.t69780216
EISBN: 978-1-62708-281-5
... be an issue in his particular design. Again, nonlinear analysis methods, such as those available in many finite-element programs, can provide very useful design information on buckling and collapse. It is well established that the strain rate imposed on a plastic has a distinct effect on its deformation...
Book Chapter

By Soumya Subramonian
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500001
EISBN: 978-1-62708-317-1
.... A stripper or blank holder strips the blank from the punch. The shear edge is made of different zones based on the method of material deformation that has occurred. The ratio of the different zones is influenced by different parameters, such as the punch-die clearance, material properties, and punch...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500019
EISBN: 978-1-62708-317-1
... contact with the tool. The finite-element method can give results that are much more accurate if used carefully in cases in which sheet, tool geometry, and loading conditions are difficult to model analytically. However, selection of the appropriate element and solver type and definition of the tool model...
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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500273
EISBN: 978-1-62708-317-1
.... In principle, the finite-element method is well established in sheet metal forming to analyze and optimize, for example, stamping processes. However, the following difficulties exist with regard to the finite-element process simulation of incremental sheet metal forming processes ( Ref 13.2...