-
Structural optimization using global stress-deviation objective function via the level-set methodPolajnar, Miha ; Kosel, Franc ; Dražumerič, RadovanThe paper deals with minimum stress design using a novel stress-related objective function based on the global stress-deviation measure. The shape derivative, representing the shape sensitivity ... analysis of the structure domain, is determined for the generalized form of the global stress-related objective function. The optimization procedure is based on the domain boundary evolution via the level-set method. The elasticity equations are, instead of using the usual ersatz material approach, solved by the extended finite element method. The Hamilton-Jacobi equation is solved using the streamline diffusion finite element method. The use of finite element based methods allows a unified numerical approach with only one numerical framework for the mechanical problem as also for the boundary evolution stage. The numerical examples for the L-beam benchmark and the notched beam are given. The results of the structural optimization problem, in terms of maximum von Mises stress corresponding to the obtained optimal shapes, are compared for the commonly used global stress measure and the novel global stress-deviation measure, used as the stress-related objective functions.Source: Structural and multidisciplinary optimization. - ISSN 1615-147X (Vol. 55, iss. 1, Jan. 2017, str. 91-104)Type of material - article, component partPublish date - 2017Language - englishCOBISS.SI-ID - 15189787
Author
Polajnar, Miha |
Kosel, Franc |
Dražumerič, Radovan
Topics
structural optimization |
global stress-related objective function |
global stress-deviation measure |
level-set method |
extended finite element method |
streamline diffusion finite element method |
strukturna optimizacija |
metoda nivojske postavitve |
razširjena metoda končnih elementov |
metoda končnih elementov |
globalna cenilna funkcija |
globalni kriterij |
napetost
![loading ... loading ...](themes/default/img/ajax-loading.gif)
![loading ... loading ...](themes/default/img/ajax-loading.gif)
![loading ... loading ...](themes/default/img/ajax-loading.gif)
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|---|
Polajnar, Miha | 36507 |
Kosel, Franc | 01698 |
Dražumerič, Radovan | 22240 |
Select pickup location:
Material pickup by post
Notification
Subject headings in COBISS General List of Subject Headings
Select pickup location
Pickup location | Material status | Reservation |
---|
Please wait a moment.