scholarly journals Study on Cbanges in Material Properties of Air Spring Rubber Bellows for Railway Vehicles.

2001 ◽  
Vol 58 (2) ◽  
pp. 92-98 ◽  
Author(s):  
Toshio AZECHI ◽  
Masanori HANSAKA ◽  
Naoto MIFUNE ◽  
Riichiro OHARA
Keyword(s):  
Material Properties ◽  
Air Spring ◽  
Railway Vehicles

scholarly journals Suppressing Vertical Vibration in Railway Vehicles through Air Spring Damping Control

2007 ◽  
Vol 1 (2) ◽  
pp. 212-223 ◽  
Author(s):  
Yoshiki SUGAHARA ◽  
Tadao TAKIGAMI ◽  
Akihito KAZATO
Keyword(s):  
Vertical Vibration ◽  
Air Spring ◽  
Railway Vehicles ◽  
Damping Control

scholarly journals On the New Air Spring Control System for Railway Vehicles.

1991 ◽  
Vol 57 (541) ◽  
pp. 2860-2865 ◽  
Author(s):  
Zen-ichiro KOBAYASHI ◽  
Kazutoshi UTAGAWA ◽  
Yasuo MORIYAMA ◽  
hitoshi SATO ◽  
Kazuyuki HOTTA ◽  
...  
Keyword(s):  
Control System ◽  
Air Spring ◽  
Railway Vehicles

scholarly journals Polyurethane foam behaviour during impact

2018 ◽  
Vol 157 ◽  
pp. 02050 ◽  
Author(s):  
Stanislav Špirk ◽  
Michal Křížek ◽  
Štěpán Jeníček
Keyword(s):  
Mechanical Properties ◽  
Polyurethane Foam ◽  
Computer Simulations ◽  
Material Properties ◽  
Passive Safety ◽  
Railway Vehicles ◽  
Material Parameters ◽  
Material Data ◽  
Rail Vehicles ◽  
Relevant Material

This contribution is focused on the passive safety of the railway vehicles interiors. The passive safety has become a new area of the rail vehicles design. In the field of rail vehicles interior passive safety the computer simulations are most widely used. The computer simulations must be based on relevant material data. For some common materials (eg. steel, aluminium, etc.) the material data are ascertainable. The interiors of rail vehicles contain quite specific materials frequently. One of the material with more complicated mechanical properties is polyurethane foam (PUR). The aim of this paper is to present validation of material parameters for specific polyurethane foam by experiment. The material properties (for seat made from Elastoflex W 5662 covered with Holdsworth BHLH 31634) will be useful for further simulations.

Grain boundary segregation in metals

1992 ◽  
Vol 50 (2) ◽  
pp. 1204-1205
Author(s):  
C.L. Briant
Keyword(s):  
Fracture Surface ◽  
Grain Boundary ◽  
Grain Boundaries ◽  
Material Properties ◽  
Electron Spectroscopy ◽  
High Vacuum ◽  
Boundary Segregation ◽  
Grain Boundary Segregation ◽  
Local Concentration ◽  
The One

Grain boundary segregation is the process by which solute elements in a material diffuse to the grain boundaries, become trapped there, and increase their local concentration at the boundary over that in the bulk. As a result of this process this local concentration of the segregant at the grain boundary can be many orders of magnitude greater than the bulk concentration of the segregant. The importance of this problem lies in the fact that grain boundary segregation can affect many material properties such as fracture, corrosion, and grain growth.One of the best ways to study grain boundary segregation is with Auger electron spectroscopy. This spectroscopy is an extremely surface sensitive technique. When it is used to study grain boundary segregation the sample must first be fractured intergranularly in the high vacuum spectrometer. This fracture surface is then the one that is analyzed. The development of scanning Auger spectrometers have allowed researchers to first image the fracture surface that is created and then to perform analyses on individual grain boundaries.

Relationships Between Grain Boundary Structure and Material Properties

1980 ◽  
Vol 38 ◽  
pp. 366-369
Author(s):  
Brian Ralph ◽  
Barlow Claire ◽  
Nicola Ecob
Keyword(s):  
Grain Boundary ◽  
Material Properties ◽  
Main Property ◽  
Grain Structure ◽  
Boundary Structure ◽  
Grain Boundary Structure ◽  
Property Changes

This brief review seeks to summarize some of the main property changes which may be induced by altering the grain structure of materials. Where appropriate an interpretation is given of these changes in terms of current theories of grain boundary structure, and some examples from current studies are presented at the end of this paper.

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