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Book Chapter
Programming Techniques, Computer-Aided Manufacturing, and Simulation Software
Available to PurchaseSeries: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860035
EISBN: 978-1-62708-338-6
.... 4.6 . This shape is axisymmetric, but for the fiber to remain in contact with the surface in the concave zone, the winding angle in the area must be almost circumferential. The effect of fiber bridging at a lower angle can be seen in Fig. 4.7 , as developed from a Cadfil software winding simulation...
Abstract
This chapter discusses the ways in which the evolution of filament winding software systems has capitalized on the inherent flexibility of computer numerical controlled winding machines and enhanced their productivity. It provides a detailed discussion on different types of geometries that can be wound, from the simple to the highly complex, with insight into the limitations, advantages, and challenges of each. Components covered include classic axisymmetric parts (rings, pipes, driveshafts, pipe reducers, tapered shafts, closed-end pressure vessels, and storage tanks), nonround sections (aeromasts, airfoils, box sections, and fuselage sections), curved-axis parts (elbows, ducts), and special applications (tees). Basic winding concepts, such as band pattern, are discussed and explained, and some simple predictive formulae are introduced. The chapter also provides examples of programming various geometries using advanced software tools and discusses how various materials, such as rovings, tow-preg, prepreg tape, and woven materials, affect winding program generation.
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500051
EISBN: 978-1-62708-317-1
... Abstract This chapter discusses the use of modeling and simulation technology in the development of sheet metal forming processes. It describes the five major steps involved in finite-element analysis and the various ways functions of interest can be approximated at each point or node...
Abstract
This chapter discusses the use of modeling and simulation technology in the development of sheet metal forming processes. It describes the five major steps involved in finite-element analysis and the various ways functions of interest can be approximated at each point or node in a finite-element mesh. It explains how to obtain input data, what to expect in terms of output data, and how to predict specific types of defects. In addition, it presents several case studies demonstrating the use of finite elements in blanking and piercing, deep drawing of round and rectangular cups, progressive die sequencing, blank holder force optimization, sheet hydroforming, hot stamping, and springback and bending of advanced high-strength steels. It also discusses the factors that affect the accuracy of finite element simulations such as springback, thickness variations, and nonisothermal effects.
Book Chapter
Modeling and Simulation of Cold Spray
Available to PurchaseSeries: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460067
EISBN: 978-1-62708-285-3
... Abstract The modeling and simulation activities in the field of high-pressure cold spray can be divided into two main parts: solid mechanics and fluid dynamics. This chapter focuses on these parts of modeling work in cold spray research. The discussion covers the objective, principal concepts...
Abstract
The modeling and simulation activities in the field of high-pressure cold spray can be divided into two main parts: solid mechanics and fluid dynamics. This chapter focuses on these parts of modeling work in cold spray research. The discussion covers the objective, principal concepts, methods, and outcome of modeling and simulation of particle impact and of in-flight history of particles in cold spraying. The concept of integration of particle impact and fluid flow modeling to optimize cold spray deposition for a given material is also explained.
Book Chapter
Computer Simulation of Phase Diagrams
Available to PurchaseSeries: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420263
EISBN: 978-1-62708-310-2
... relationships that reflect structure with respect to different crystal types, but such conditions must be externally formulated and imposed on the model. Equally, special relationships apply if the model is to be used to simulate order-disorder transformations. Fig. 13.2 Simple body-centered cubic...
Abstract
This chapter provides an overview of a computational method, called CALPHAD, used for the study of phase equilibria in multicomponent systems. It describes the thermodynamic models and calculation techniques employed in the software and explains how it applies to complex alloys used in industry. It also provides examples showing how CALPHAD has been used to determine the formability of metallic glass, calculate the dilation of stainless steel during phase transformation, and predict the beta transus and approach curves of commercial titanium alloys.
Book Chapter
Tools and Procedures for Molecular Dynamics Simulation
Available to PurchaseSeries: ASM Technical Books
Publisher: ASM International
Published: 31 August 2023
DOI: 10.31399/asm.tb.mdsbktmse.t56070001
EISBN: 978-1-62708-451-2
... set of conditions. It also provides a walk-through on the use of LAMMPS, an open-source molecular dynamics simulator, discussing the selections and inputs of relevance to practical materials problems. computational materials analysis LAMMPS molecular dynamics materials modeling numerical...
Abstract
This chapter familiarizes readers with the basic theory of molecular dynamics and its application in the study of materials. It explains how material properties and behaviors are determined through the iterative calculation of motion equations for a collection of atoms under a given set of conditions. It also provides a walk-through on the use of LAMMPS, an open-source molecular dynamics simulator, discussing the selections and inputs of relevance to practical materials problems.
Book Chapter
Molecular Dynamics Simulation Calculations
Available to PurchaseSeries: ASM Technical Books
Publisher: ASM International
Published: 31 August 2023
DOI: 10.31399/asm.tb.mdsbktmse.t56070007
EISBN: 978-1-62708-451-2
... Abstract The appendix contains detailed simulation examples through which readers learn how to format and analyze problems using the LAMMPS molecular dynamics simulator. By means of simulation, readers will determine the thermal expansion coefficient of copper, generate stress-strain plots...
Abstract
The appendix contains detailed simulation examples through which readers learn how to format and analyze problems using the LAMMPS molecular dynamics simulator. By means of simulation, readers will determine the thermal expansion coefficient of copper, generate stress-strain plots for aluminum at different temperatures, calculate the surface energy of copper for different crystal orientations, investigate diffusion effects in BCC iron, estimate the sliding friction between graphene layers, compare the stacking fault energy of silver and aluminum, and analyze the properties and behaviors of liquids and gases. All examples employ a systematic problem-solving approach and include necessary input code.
Image
Adaptive simulation approach flow chart (running at each simulation time st...
Available to PurchasePublished: 01 August 2012
Fig. 9.42 Adaptive simulation approach flow chart (running at each simulation time step t i − t i+1 ). THF, tube hydroforming
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Computer simulation of time-temperature diagram for induction tempering of ...
Available to PurchasePublished: 01 August 2015
Fig. 7.10 Computer simulation of time-temperature diagram for induction tempering of 18 mm (0.7 in.) diameter medium-carbon steel rods traveling at 100 mm/s (4 in./s). Each coil is 50 mm (2 in.) long, and the distance between coils is 100 mm (4 in.). Source: Ref 6
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ELTA software: (a) simulation of induction scanning, and (b) temperature gr...
Available to PurchasePublished: 01 August 2015
Fig. A3.9 ELTA software: (a) simulation of induction scanning, and (b) temperature graphs at different radii versus time for the induction scanning process. See text for details. Source: Ref 12
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Image
Published: 01 August 2012
Fig. 3.4 Sheared edge obtained in simulation (punch/die clearance = 20.8%, z r = rollover zone, z s = shear zone, z f = fracture zone, z b = burr height). Source: Ref 3.14
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Image
Schematic of the finite-element model for the forming simulation of a liftg...
Available to PurchasePublished: 01 August 2012
Fig. 3.9 Schematic of the finite-element model for the forming simulation of a liftgate part. Source: Ref 3.19
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Image
Forming simulation of a B-pillar using PAMSTAMP. Input data were taken from...
Available to PurchasePublished: 01 August 2012
Fig. 3.19 Forming simulation of a B-pillar using PAMSTAMP. Input data were taken from Ref 3.23
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Published: 01 August 2012
Fig. 9.41 Schematic of adaptive simulation procedure. P iy , yielding pressure; Δ P i , pressure increment; Δ D a , axial feed increment
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Computer simulation of fungal invasion in two-dimensional matrix containing...
Available to PurchasePublished: 01 December 2003
Fig. 3 Computer simulation of fungal invasion in two-dimensional matrix containing randomly distributed biodegradable fraction at the percolation threshold
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Monte-Carlo simulation of the trajectories of 30 keV electrons passing thro...
Available to PurchasePublished: 01 November 2019
Figure 31 Monte-Carlo simulation of the trajectories of 30 keV electrons passing through a 100 nm aluminum thin film.
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Monte-Carlo simulation of electron trajectories for 15 keV electrons in InP...
Available to PurchasePublished: 01 November 2019
Figure 6 Monte-Carlo simulation of electron trajectories for 15 keV electrons in InP. The number of P K-α x-rays that are created and emitted from each depth are also shown.
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Published: 01 November 2019
Figure 9 Monte-Carlo simulation for Si K-α x-rays in a SiO 2 matrix at 5 keV.
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Published: 01 November 2019
Figure 12 Monte-Carlo simulation for Si K-α x-rays in a SiO 2 matrix at 15 keV.
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