نتایج جستجو برای: thin wall structures

تعداد نتایج: 728691  

Journal: :Metals 2021

Thin-walled structures are of great interest because their use as lightweight components in aeronautical and aerospace engineering. The fabrication these by additive manufacturing (AM) often produces undesired warpage the thermal stresses induced process components’ reduced structural stiffness. objective this study is to analyze distortion several thin-walled fabricated Laser Powder Bed Fusion...

2013
Maodong Kang Haiyan Gao Jun Wang Lishibao Ling Baode Sun

The dimensionless Niyama criterion was used to predict the formation of microporosity in nickel-based superalloy casting, which extended the model application from a simple plate casting to complex thin-wall superalloy casting. The physical characteristics of the superalloy were calculated by JMatPro software. The relation between the volume percentage of microporosity and the dimensionless Niy...

2011
A. Ya. Ender V. I. Kuznetsov

An experimental study of the physical processes in a thin plasma jet produced by the pulsed discharges in the capillary with evaporated wall is described. The losses in mass from capillary wall as well as the transferred charge are accurately measured. The velocity of plasma jet propagation is measured, too. The current structure in plasma is studied. It is proved that a thin plasma jet can be ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1391

deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...

2004
D. G. Porter M. J. Donahue

Micromagnetic simulation of domain wall motion in thin, narrow strips leads to a simplified analytical model. The model accurately predicts the same domain wall velocity as full micromagnetic calculations, including dependence on strip width, thickness, and magnitude of applied field pulse. Domain wall momentum and retrograde domain wall motion are both observed and explained by the analytical ...

Journal: :Archives of Foundry Engineering 2013

Journal: :Advanced Materials Research 2011

Journal: :Journal of High Energy Physics 2022

A bstract We derive a closed-form false vacuum decay rate at one loop in the thin wall limit, where true and vacua are nearly degenerate. obtain bounce configuration D dimensions, together with Euclidean action higher order correction, counter-terms renormalization group running. extract functional determinant via Gel’fand-Yaglom theorem for low generic orbital multipoles. The negative zero eig...

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