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Nonlinear response topology optimization using equivalent static loads-case studies

Title
Nonlinear response topology optimization using equivalent static loads-case studies
Author
박경진
Keywords
Topology optimization; equivalent loads; nonlinear analysis; nonlinear response optimization; finite element method; ELEMENT CONNECTIVITY PARAMETERIZATION; STRUCTURAL OPTIMIZATION; HOMOGENIZATION METHOD; COMPLIANT MECHANISMS; DESIGN
Issue Date
2017-01
Publisher
TAYLOR & FRANCIS LTD
Citation
ENGINEERING OPTIMIZATION, v. 49, No. 2, Page. 252-268
Abstract
Nonlinear structural optimization is fairly expensive and difficult, because a large number of nonlinear analyses is required due to the large number of design variables involved in topology optimization. In element density based topology optimization, the low density elements create mesh distortion and the updating of finite element material with low density elements has a severe effect on the optimization results in the next cycles. In order to overcome these difficulties, the equivalent static loads method for nonlinear response structural optimization (ESLSO) primarily used for size and shape optimization has been applied to topology optimization. The nonlinear analysis is performed with the given loading conditions to calculate equivalent static loads (ESLs) and these ESLs are used to perform linear response optimization. In this paper, the authors have presented the results of five case studies with material, geometric and contact nonlinearities showing good agreement and providing justification of the proposed method.
URI
https://www.tandfonline.com/doi/abs/10.1080/0305215X.2016.1187728https://repository.hanyang.ac.kr/handle/20.500.11754/71632
ISSN
0305-215X; 1029-0273
DOI
10.1080/0305215X.2016.1187728
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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