0

Full Content is available to subscribers

Subscribe/Learn More  >

Optimal Design of an Isotropic Porous-Cellular Cylindrical Shell

[+] Author Affiliations
Krzysztof Magnucki, Jerzy Lewinski

Poznan University of Technology, Poland

Marek Malinowski

University of Zielona Gora, Poland

Paper No. PVP2006-ICPVT-11-94029, pp. 345-352; 8 pages
doi:10.1115/PVP2006-ICPVT-11-94029
From:
  • ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference
  • Volume 3: Design and Analysis
  • Vancouver, BC, Canada, July 23–27, 2006
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4754-3 | eISBN: 0-7918-3782-3
  • Copyright © 2006 by ASME

abstract

The paper outlines the effects on an isotropic porous-cellular cylindrical shell when subjected to a combined load: of axial force and external pressure. Metal porosity varies across the thickness of the shell wall. A dimensionless porosity parameter is introduced to compensate for this. Nonlinear hypothesis of deformation of the flat cross section of the shell wall is formulated. A system of five differential equations is defined on the basis of the theorem of the minimum of total potential energy. This system of equations is then analytically solved with Galerkin’s method. Critical loads for a family of porous shells are numerically determined based on the analytical solution. The optimization problem considers two criteria: minimum of mass and maximum of critical load on the shell. Optimal porosity variability for the cylindrical shell is determined numerically. An optimal dimensionless porosity parameter is then defined. Moreover, a comparative analysis for selected cylindrical shells with the use of FEM is performed. Results of the calculation are shown in respective figures. Finally, the results of the investigation for porous cylindrical shells are compared to the corresponding results for isotropic homogeneous shells.

Copyright © 2006 by ASME
Topics: Design , Pipes

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In