Fatigue and static failure considerations using a topology optimization method

Title
Fatigue and static failure considerations using a topology optimization method
Authors
윤길호
Keywords
Topology optimization; Dynamic fatigue constraints; Gerber theory; Modified Goodman theory; Soderberg theory
Issue Date
2015-02
Publisher
ELSEVIER SCIENCE INC
Citation
APPLIED MATHEMATICAL MODELLING, v. 39, NO 3-4, Page. 1137-1162
Abstract
We developed a new layout optimization method that incorporates dynamic fatigue and static failure criteria under constant and proportional mechanical loads. Although fatigue failure is one of the most important design considerations to ensure the safety of a mechanical structure, it has rarely been considered in terms of topology optirhization due to several major theoretical and numerical difficulties. In addition to the numerical and theoretical issues associated with static failure criteria, we found that the local mode issue and the non-differentiability of the fatigue failure criteria needed to be addressed prior to performing fatigue constraint topology optimization. By resolving the inherent and newly-found issues associated with fatigue criteria, we were able to perform successful topology optimization with dynamic fatigue criteria under constant and proportional mechanical loads. (C) 2014 Elsevier Inc. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0307904X14003631http://hdl.handle.net/20.500.11754/22462
ISSN
0307-904X; 1872-8480
DOI
http://dx.doi.org/10.1016/j.apm.2014.07.020
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE