On the plastic deformation of polycrystals
Webdeformation, using a two-dimensional polycrystalline model. These examples clearly show that the rate-dependent crystallographic slip on the level of single crystals … WebIn the last part of Section 2, a 4-parameter Voce-type hardening law is proposed to mimic the plastic behavior of the polycrystals by the non-local crystal plasticity model. In Section 3 , the influence of the non-local crystal plasticity parameters is studied by changing them in a range, and the trends of the proposed hardening law parameters are obtained by …
On the plastic deformation of polycrystals
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Web14 de abr. de 2024 · PDF Understanding of deformation and degradation of bulk metals under loading is necessary to improve the safety and environmental performance of... Find, read and cite all the research you ... Web15 de fev. de 2024 · The deformation mechanism and texture evolution of AZ31 Mg alloy compressed in three different directions at room temperature were studied, and the …
Web6 de dez. de 2024 · Strong obstacles can greatly impede the motion or transmission of dislocations, which can be reflected by strain rate sensitivity and activation volume. In … Web11 de abr. de 2024 · ABAQUS支持导入多种几何模型格式，包括IGES、STEP、ACIS、CATIA等，其中IGES格式是ABAQUS默认的几何模型格式，可以用于导入Voronoi模型 …
WebLocal and nonlocal strain gradient approaches for size-dependent plastic deformation ÜNSAL İzzet Erkin, GÜNAY Enes, YALÇINKAYA Tuncay Abstract. Micro scale manufacturing technologies have been a productive area of research due to the increase in miniaturization in various industries. However, most of the know-how in conventional … Web1 de jul. de 1998 · The extended Taylor assumption of uniform deformation gradient among grains was applied in 3-D polycrystal plasticity simulations for complex loading paths at finite strain for OFHC Cu using the Los Alamos polycrystal plasticity (LApp) code (Kocks et al., 1994). Comparisons of both stress-strain behavior and texture evolution, with and …
WebProblems in plasticity typically arise in materials processing. The most common metal-processing techniques (i.e., drawing, rolling, extrusion, explosive forming, stamping, and …
WebThere is extensive dislocation annihilation during deformation at these two temperatures, particularly in the two aluminiums and particularly in fine grains. The behaviour of the … on risk buildings insuranceWebThis work focuses on the temperature evolution of the martensitic phase ε (hexagonal close packed) induced by the severe plastic deformation via High Speed High Pressure … onriva travel reviewsWeb1 de jun. de 2004 · Theoretical investigations of polycrystals have attempted to show how the inhomogeneity of the plastic deformation between neighboring grains may be … inyectores motorWeb1 de mar. de 2014 · Here, the response of polycrystals to plastic deformation is studied at the level of variations within individual grains, and comparisons are made to theoretical calculations using crystal plasticity (CP). We provide a brief overview of CP and a review of the literature, which is dominated by surface observations. inyectores mahindra 2.2 dieselWeb1 de fev. de 2008 · To describe the work hardening process of polycrystals processed using various thermomechanical cycles with isochronal annealing from 500 to 900 °C, a … inyectores maderaWeb23 de mar. de 2001 · At the same time, textures in minerals and rocks are vital sources revealing information about geological processes. Textures evolve during plastic … on river time broken bowWeb@article{osti_4183525, title = {the relation between the plastic deformation of aluminum single crystals and polycrystals. Final Report}, author = {Howe, S and Elbaum, C}, abstractNote = {Single crystals of {100}, {111}, and {110} axial orientation, and polycrystals, both of 99.99% pure aluminum, were deformed in tension at temperatures of 27, 200, … inyectores malos