Two-scale topology optimization for transient heat analysis in porous material considering the size effect of microstructure
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
This paper presents a two-scale topology optimization framework for determining the optimal microstructure in porous material under transient heat conduction and transfer. The new optimization model, which can consider the surface area directly from microstructure topology as the size-dependent term, is introduced to enhance the heat transfer performance. In more detail, a homogenization method capable of considering the size-dependent microscopic heat transfer effect is adopted to express the microscopic material responses. A well-known material interpolation, referred to as the SIMP approach, and the design-dependent linear function are used for interpolating intermediate material properties. The minimal transient heat compliance is chosen as an objective function in this optimization problem. For the sensitivity analysis, a coupled-adjoint variable method is adopted to derive transient sensitivity formulation. The analysis shows that the proposed topology optimization model captures not only the transient heat but also the size effect of the microstructure in a transient heat analysis in porous material.
Details
Original language | English |
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Article number | 186 |
Number of pages | 21 |
Journal | Structural and multidisciplinary optimization : research journal ; journal of the International Society for Structural and Multidisciplinary Optimization (ISSMO) |
Volume | 65 |
Issue number | 7 |
Publication status | Published - 1 Jul 2022 |
Peer-reviewed | Yes |
External IDs
Scopus | 85132102994 |
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Keywords
ASJC Scopus subject areas
Keywords
- Homogenization, Microstructure, Size-dependent, Topology optimization, Transient heat analysis