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topology optimization

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Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002446
EISBN: 978-1-62708-194-8
... and provides some background on how these algorithms make decisions when searching for the optimal design. It also provides information on structural optimization, topology optimization, materials processing optimization, multidisciplinary optimization, and global optimization. design optimization...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006555
EISBN: 978-1-62708-290-7
... section (Ref 4) and (b) a multimaterial photopolymer part (Stratasys J750 printer) Fig. 6 Crystallographic texture control in additive manufacturing (Ref 5) Fig. 3 Nacelle hinge bracket for Airbus A320 (a) and topology-optimized design produced by additive manufacturing (b). Courtesy...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006560
EISBN: 978-1-62708-290-7
... accordingly. Finally, the suitable AM process can be selected after identifying the trade-offs among the competing alternatives. Topology optimization, as a DFAM approach, has received much attention recently due to its tendency to create geometries that are often too complex for conventional...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006326
EISBN: 978-1-62708-179-5
.... If this information is carried over to a load analysis, it is possible to optimize the casting geometry with regard to production, properties, and final performance in use ( Ref 3 , 5 , 29 , 30 ). Such analyses can be combined with topology optimization methods to reduce the casting weight. Several examples exist...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005511
EISBN: 978-1-62708-197-9
.... Propulsion Power , Vol 22 ( No. 2 ), 2006 , p 361 – 374 16. Ritzert F. , Keller D. , and Vasudevan V. , “Investigation of the Formation of Topologically Close Packed Phase Instabilities in Nickel-Base Superalloys, Rene N6,” NASA/TM , 1999 17. PanNi—Thermodynamic Database...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006564
EISBN: 978-1-62708-290-7
... Goals Thermal Monitoring of Laser PBF Using Optical Tomography Thermal Monitoring of E-Beam PBF with Emissivity Correction Thermal Monitoring of Melt Pool in E-Beam PBF Powder-Bed and Component Monitoring Optical Monitoring Thermal Monitoring Height and Surface Topology Melt Pool...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005836
EISBN: 978-1-62708-167-2
... Circuits Induction Heating Power Supplies Parallel versus Series Topology Low-Frequency Power Supplies Power Supplies with Multiple Heat Stations Power Supply Control Special Considerations for Power Supplies System Design—Power Supply Selection Heat Station Configurations Power...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001762
EISBN: 978-1-62708-178-8
... is important for optimizing the resolution of distances in the RDF and their accuracy. The ultimate resolution of a sampled Fourier transform is 2π/ s max in angstroms. Thus, resolution of distances separated by 0.5 Å necessitates accurate data collection at least as far as s = 2π/0.5 = 12.6 Å −1 . Higher...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005402
EISBN: 978-1-62708-196-2
... of this article. The currently used formulism based on the Bragg-Williams or point approximation ( Ref 66 , Ref 67 , 68 ) is unable to properly account for the topological features of the fcc-based phase diagrams, due to the neglect of the existence of short-range ordering (SRO) in the lattice ( Ref 12 , 24...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005505
EISBN: 978-1-62708-197-9
...Abstract Abstract The process of optimization involves choosing the best solution from a pool of potential candidate solutions. This article provides a description of some classes of problems and the optimization methods that solve them. These problems include the deterministic single-objective...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002441
EISBN: 978-1-62708-194-8
... is to be used as the basis for product development, it must be very rich in intrinsic information. To make the concept viable, the product model must support not only physical design, but analysis, testing, design optimization, simulation, prototyping, manufacturing, maintenance, and many other product...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001424
EISBN: 978-1-62708-173-3
... heat treatment is sometimes used to provide stress relief. Complete stress relief can be achieved with full solution anneal, which also gives the alloy an optimal metallurgical condition. Solution annealing will eliminate any prior cold work by recrystallization and will dissolve secondary M 23 C 6...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005428
EISBN: 978-1-62708-196-2
... • Rollett A.D. , Srolovitz D.J. , and Doherty R.D. , Computer-Simulation of Recrystallization in Non-Uniformly Deformed Metals , Acta Metall. Mater. , Vol 37 , 1989 , p 627 – 639 • Smith C.S. , Grain Shapes and Other Metallurgical Applications of Topology , Metal Interfaces...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003749
EISBN: 978-1-62708-177-1
... by optimizing the refractive index ( n s ) and absorption coefficient ( k s ) of the layer with respect to the optical constants of the phases ( n A , k A , n B , k B ) and adjusting the layer thickness, d s . Fig. 1 Concept of improved contrast between two phases from film deposition...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005233
EISBN: 978-1-62708-187-0
...-fluids processes, to interpret experimental measurements, to identify controlling parameters, and to optimize product and process designs. Computational fluid dynamics is one discipline falling under the broad heading of computer-aided engineering, which together with computer-aided design and computer...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005266
EISBN: 978-1-62708-187-0
..., and acceleration to optimize flow and force on the metal as it fills the cavity and solidifies. Die Casting Alloys and Processes Advantages of High-Pressure Die Casting Disadvantages of High-Pressure Die Casting Product Design for the Process Metal Injection References References 1. North...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005838
EISBN: 978-1-62708-167-2
... operating uency is required. The choice of inverter topology is only weakly linked to the type of conduction the switching device is capable of delivering. In the following sections, switches with series diodes are used to represent unidirectional devices, such as the SCR (which only conducts...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006117
EISBN: 978-1-62708-175-7
... occur for sintering times longer than the optimal time Use of grain growth inhibitor Smaller final grain size; more homogeneous final microstructure Use of liquid-forming sintering aid Faster densification and grain growth; lower sintering temperature; lower fabrication cost Use of external...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005521
EISBN: 978-1-62708-197-9
... of the phases, while the solid phase is not topologically described ( Fig. 1c ). As a consequence, and unlike the previous type of model, no direct visualization of the dendritic structure is accessible with this approach, because the grains are not tracked individually. Coupling with modeling of the casting...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005544
EISBN: 978-1-62708-197-9
...Abstract Abstract This article demonstrates the depth and breadth of commercial and third-party software packages available to simulate metals processes. It provides a representation of the spectrum of applications from simulation of atomic-level effects to manufacturing optimization...