Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 윤길호 | - |
dc.date.accessioned | 2018-03-20T06:58:05Z | - |
dc.date.available | 2018-03-20T06:58:05Z | - |
dc.date.issued | 2014-05 | - |
dc.identifier.citation | FINITE ELEMENTS IN ANALYSIS AND DESIGN, 권: 82, 페이지: 16-31 | en_US |
dc.identifier.issn | 0168-874X | - |
dc.identifier.issn | 1872-6925 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0168874X13002138?via%3Dihub | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/49695 | - |
dc.description.abstract | This research develops a new interpolation scheme, a separable stress interpolation (SSI) which allows stress-based topology optimization with multiple materials (STOMM). In common material interpolation Function such as extended solid isotropic material with penalization (SIMP) for multiple materials, Young's modulus is interpolated from those of several solids to a smaller value with respect to design variables whose number is same as the number of considered materials. When the same interpolated Young's modulus is used for stress evaluation, it is found that the calculated stress norm becomes a small value when ones are assigned to the design variables of each element causing physically unacceptable layouts. In order to resolve this ill-posed issue for STOMM, we present the SSl scheme which computes the stress constraints of stacked elements separately. For a stable topology optimization process, the computational issues of the p-norm stress measure, the number of stress evaluation points inside an element, and the correction parameter for the approximated stress measure are addressed for STOMM. Furthermore, we present a new regional constraint method based on the sorting algorithm. The applicability and limitations of the newly developed framework are discussed in the context of its application to several stress-based topology optimizations with multiple materials. (C) 2013 Elsevier B.V. All rights reserved. | en_US |
dc.description.sponsorship | This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government(MEST) (NRF-2012R1A1A2A10038803). | en_US |
dc.language.iso | en | en_US |
dc.publisher | ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS | en_US |
dc.subject | Topology optimization | en_US |
dc.subject | Stress-based topology optimization | en_US |
dc.subject | Separable stress interpolation scheme | en_US |
dc.subject | Multiple materials | en_US |
dc.title | Separable stress interpolation scheme for stress-based topology optimization with multiple homogenous materials | en_US |
dc.type | Article | en_US |
dc.relation.volume | 82 | - |
dc.identifier.doi | 10.1016/j.finel.2013.12.003 | - |
dc.relation.page | 16-31 | - |
dc.relation.journal | FINITE ELEMENTS IN ANALYSIS AND DESIGN | - |
dc.contributor.googleauthor | Jeong, Seung Hyun | - |
dc.contributor.googleauthor | Choi, Dong-Hoon | - |
dc.contributor.googleauthor | Yoon, Gil Ho | - |
dc.relation.code | 2014029632 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DIVISION OF MECHANICAL ENGINEERING | - |
dc.identifier.pid | ghy | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.