Universiti Teknologi Malaysia Institutional Repository

Numerical simulation of thermal and mechanical properties of sintered perforated hollow sphere structures (PHSS)

Öchsner, Andreas and Hosseini, Seyed Mohammad Hossein and Merkel, Markus (2009) Numerical simulation of thermal and mechanical properties of sintered perforated hollow sphere structures (PHSS). In: Iaeng Transactions On Engineering Technologies, Vol 3. AIP Conference Proceedings, 1174 . American Institute of Physics, USA, pp. 16-30. ISBN 978-0-7354-0713-8

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1063/1.3256244

Abstract

This paper investigates the thermal and mechanical properties of a new type of hollow sphere structures For this new type, the sphere shell is perforated by several holes in order to open the Inner sphere volume and surface The effective thermal conductivity of perforated sphere structures in several kinds of arrangements, i.e primitive cubic (PC). body-centered cubic (BCC), face-centered cubic (FCC) and hexagonal (Hex) unit cell models, is numerically evaluated for different hole diameters In addition, mechanical properties of sintered perforated hollow sphere structures also have been evaluated for a unit cell in a PC arrangement with different hole diameters The results are compared to classical configurations without perforation In the scope of this study, three-dimensional finite element analysis is used in order to investigate unit cell models When the relative density decreases the heat conductivity also decreases A linear behavior was found for the heat conductivity of different hole diameters for several kinds of arrangements when the results are plotted over the relative density. In addition, when the relative density increases the Young's modulus and initial yield stress increase but Poisson's ratio decreases

Item Type:Book Section
Additional Information:International Multi-Conference of Engineers and Computer Scientists, Kowloon, Peoples r China, Mar 18-20, 2009
Uncontrolled Keywords:cellular materials, thermal conductivity, mechanical properties, finite element method
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:13022
Deposited By: Mrs Liza Porijo
Deposited On:13 Jul 2011 02:10
Last Modified:13 Jul 2011 02:10

Repository Staff Only: item control page