نتایج جستجو برای: elastic die deformation

تعداد نتایج: 259696  

1998
Hartwig Grabowski

In this paper a new method for elastic registration of medical images is presented. The method uses corresponding regions of gray values, which are segmented interactively. The deformation part is based on finite element meshes generated from the segmented regions. During the deformation process, the similarity between the deformed mesh and the target image is measured and the ‘intensity’ of th...

Journal: :Ultrasonics 2003
Minoru Kuribayashi Kurosawa Hidenori Itoh Katsuhiko Asai

Importance of elastic deformation control to obtain large output force with a surface acoustic wave (SAW) motor is discussed in this paper. By adding pre-load to slider, stator and slider surfaces are deformed in a few tens nanometer. Appropriate deformation in normal direction against normal vibration displacement amplitude of SAW existed. By moderate deformation, the output force of the SAW m...

2000
Sundaram Gunasekaran Mehmet Ak

An ideal solid material will respond to an applied load by deforming ®nitely and recovering that deformation upon removal of the load. Such a response is called ``elastic''. Ideal elastic materials obey Hooke's law, which describes a direct proportionality between the stress ( ) and strain ( ) via a proportionality constant called modulus (G), i.e., ˆ G . An ideal ̄uid will deform and continue t...

Journal: :Materials research proceedings 2023

Abstract. In copper extrusion, the dies are continuously subjected to high thermo-mechanical stress. This results in elastic and plastic die deformation as well extensive wear. To estimate strain of possible hard phase surface modifications during service, knowledge behavior extrusion is required. Therefore, made four different tool materials was investigated present study. The applied were hot...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2011
Alexander Korobkin Emilian I Părău Jean-Marc Vanden-Broeck

Hydroelasticity brings together hydrodynamics and elastic theories. It is concerned with deformations of elastic bodies responding to hydrodynamic excitations, which themselves depend on elastic deformation. This Theme Issue is intended to identify and to outline mathematical problems of modern hydroelasticity and to review recent developments in this area, including physically and mathematical...

2014
T. Penchev D. Karastoyanov

The results from experimental research of deformation by upsetting and die forging of lead specimens wit controlled impact are presented. Laboratory setup for conducting the investigations, which uses cold rocket engine operated with compressed air, is described. The results show that when using controlled impact is achieving greater plastic deformation and consumes less impact energy than at o...

Journal: :Journal of the mechanical behavior of biomedical materials 2009
Michelle L Oyen Robert F Cook

Mechanical properties of biological materials are increasingly explored via nanoindentation testing. This paper reviews the modes of deformation found during indentation: elastic, plastic, viscous and fracture. A scheme is provided for ascertaining which deformation modes are active during a particular indentation test based on the load-displacement trace. Two behavior maps for indentation are ...

H Molatefi M Gheisari, S.S Ahmadi

Third order shear deformation theory of cylindrical shells is employed to investigate the vibration characteristics of non-homogeneous cylindrical shells surrounded by an elastic medium. The kinematic relations are obtained using the strain-displacement relations of Donnell shell theory. The shell properties are considered to be dependent on both position and thermal environment. A suitable fun...

2016
Shuiping Zou Zhenping Wan Longsheng Lu Yong Tang

A novel porous metal fiber/powder sintered composite sheet (PMFPSCS) is developed by sintering a mixture of a porous metal fiber sintered sheet (PMFSS) and copper powders with particles of a spherical shape. The characteristics of the PMFPSCS including its microstructure, sintering density and porosity are investigated. A uniaxial tensile test is carried out to study the tensile behaviors of th...

2018
Donald Mackenzie Robert Hamilton

Thin shell torispherical pressure vessel heads are known to exhibit complex elasticplastic deformation and buckling behaviour under static pressure. In pressure vessel Design by Analysis, the designer is required to assess both of these behaviour modes when specifying the allowable static load. The EN and ASME Boiler and Pressure Vessel Codes permit the use of inelastic analysis in design by an...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید