Localized plastic flow, anisotropic mechanical properties and crystallographic texture in Zircaloy sheet

1989 ◽  
Vol 11 (4) ◽  
pp. 315-329 ◽  
Author(s):  
Sheikh T. Mahmood ◽  
K. Linga Murty
Keyword(s):  
Mechanical Properties ◽  
Plastic Flow ◽  
Crystallographic Texture ◽  
Anisotropic Mechanical Properties

scholarly journals Morphological and Crystallographic Effects in the Laser Powder-Bed Fused Stainless Steel Microstructure

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 672
Author(s):  
Tim Fischer ◽  
Leonhard Hitzler ◽  
Ewald Werner
Keyword(s):  
Mechanical Properties ◽  
Process Parameters ◽  
Crystallographic Texture ◽  
Experimental Studies ◽  
Grain Morphology ◽  
Steel Microstructure ◽  
Numerical Predictions ◽  
Anisotropic Mechanical Properties ◽  
The Individual ◽  
Individual Grains

One of the key aspects in additive manufacturing of stainless steels is the relationship between process parameters and the resulting microstructure. The selected process parameters typically cause a rapid solidification of the material, which leads to a microstructure that is highly textured both morphologically and crystallographically. While the morphological texture is characterised by a mainly columnar shape of the grains, the crystallographic texture is marked by a preferred grain orientation in the <001> direction (fibre texture). Due to the texture effects, pronounced anisotropic mechanical properties are present in the material. In this report, a series of virtual microstructures with different morphological and crystallographic features are generated to develop a fundamental understanding of the individual texture effects on the mechanical properties. The grain morphology is based on Voronoi tessellations, and the crystallographic texture is captured with crystal plasticity. Furthermore, the numerical predictions are compared with experimental studies. The mechanical properties predicted on the basis of the virtual microstructures show that the crystallographic effect is much more dominant than the morphology of the individual grains. Consistent with the experiments, the highest load-bearing capacity of the material occurs when the macroscopic loading acts under an angle of 45∘ to the preferred orientation of the crystals.

Role of the crystallographic texture in anisotropic mechanical properties of a newly-developed hot-rolled TRIP steel

2020 ◽  
Vol 790 ◽  
pp. 139683
Author(s):  
Shih-Che Chen ◽  
Cheng-Yao Huang ◽  
Yuan-Tsung Wang ◽  
Ching-Yuan Huang ◽  
Hung-Wei Yen
Keyword(s):  
Mechanical Properties ◽  
Crystallographic Texture ◽  
Trip Steel ◽  
Anisotropic Mechanical Properties ◽  
Hot Rolled

scholarly journals Dynamic Response of Thermally Bonded Bicomponent Fibre Nonwovens

2011 ◽  
Vol 70 ◽  
pp. 405-409 ◽  
Author(s):  
Emrah Demirci ◽  
Memiş Acar ◽  
Behnam Pourdeyhimi ◽  
Vadim V. Silberschmidt
Keyword(s):  
Mechanical Properties ◽  
Dynamic Response ◽  
Fibre Diameter ◽  
Orientation Distribution ◽  
Nonwoven Fabric ◽  
Woven Fabrics ◽  
Core Material ◽  
Finite Element Software ◽  
Anisotropic Mechanical Properties ◽  
Fibre Matrix

Having a unique microstructure, nonwoven fabrics possess distinct mechanical properties, dissimilar to those of woven fabrics and composites. This paper aims to introduce a methodology for simulating a dynamic response of core/sheath-type thermally bonded bicomponent fibre nonwovens. The simulated nonwoven fabric is treated as an assembly of two regions with distinct mechanical properties. One region - the fibre matrix – is composed of non-uniformly oriented core/sheath fibres acting as link between bond points. Non-uniform orientation of individual fibres is introduced into the model in terms of the orientation distribution function in order to calculate the structure’s anisotropy. Another region – bond points – is treated in simulations as a deformable bicomponent composite material, composed of the sheath material as its matrix and the core material as reinforcing fibres with random orientations. Time-dependent anisotropic mechanical properties of these regions are assessed based on fibre characteristics and manufacturing parameters such as the planar density, core/sheath ratio, fibre diameter etc. Having distinct anisotropic mechanical properties for two regions, dynamic response of the fabric is modelled in the finite element software with shell elements with thicknesses identical to those of the bond points and fibre matrix.

scholarly journals Anisotropic Mechanical Properties of Living Cells Revealed by Integrated Spinning Disk Confocal and Atomic Force Microscopy

2018 ◽  
Vol 114 (3) ◽  
pp. 513a
Author(s):  
Yuri M. Efremov ◽  
Mirian Velay-Lizancos ◽  
Daniel M. Suter ◽  
Pablo D. Zavattieri ◽  
Arvind Raman
Keyword(s):  
Mechanical Properties ◽  
Atomic Force Microscopy ◽  
Living Cells ◽  
Force Microscopy ◽  
Atomic Force ◽  
Spinning Disk ◽  
Anisotropic Mechanical Properties

Orientation of bone mineral and its role in the anisotropic mechanical properties of bone—Transverse anisotropy

1989 ◽  
Vol 22 (2) ◽  
pp. 157-164 ◽  
Author(s):  
Naoki Sasaki ◽  
Norio Matsushima ◽  
Tetsu Ikawa ◽  
Hidemi Yamamura ◽  
Akeharu Fukuda
Keyword(s):  
Mechanical Properties ◽  
Bone Mineral ◽  
Transverse Anisotropy ◽  
Anisotropic Mechanical Properties
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