Abstract
This paper introduces a new method for multiscale topology optimization, where the topology is optimized at two scales: the macroscale, where the structure is optimized, and the microscale, where the material is optimized. Thus, structure and material are optimized simultaneously. The method introduced in this paper can be used with any number of unique microstructures and solve a wide range of structural design problems. The problem is decomposed such that the computational demands can be maintained at a reasonable level by parallelization. Homogenization is used to compute the effective material properties of the microscale designs and a level-set topology optimization method is used at both scales. The proposed approach is demonstrated using minimum compliance and compliant mechanism design problems.
| Original language | English |
|---|---|
| Title of host publication | 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference |
| Publisher | American Institute of Aeronautics and Astronautics Inc, AIAA |
| ISBN (Print) | 9781624103926 |
| DOIs | |
| Publication status | Published - Jan 2016 |
| Event | 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2016 - San Diego, United States Duration: 4 Jan 2016 → 8 Jan 2016 |
Conference
| Conference | 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2016 |
|---|---|
| Country | United States |
| City | San Diego |
| Period | 4/01/16 → 8/01/16 |
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Keywords
- Level-set method
- Material design
- Multiscale
- Topology optimization
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Architecture
- Mechanics of Materials
Cite this
Multiscale topology optimization for structures with tailored porous structured materials. / Sivapuram, Raghavendra; Dunning, Peter D.; Kim, H. Alicia.
57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, 2016. 0938.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Multiscale topology optimization for structures with tailored porous structured materials
AU - Sivapuram, Raghavendra
AU - Dunning, Peter D.
AU - Kim, H. Alicia
PY - 2016/1
Y1 - 2016/1
N2 - This paper introduces a new method for multiscale topology optimization, where the topology is optimized at two scales: the macroscale, where the structure is optimized, and the microscale, where the material is optimized. Thus, structure and material are optimized simultaneously. The method introduced in this paper can be used with any number of unique microstructures and solve a wide range of structural design problems. The problem is decomposed such that the computational demands can be maintained at a reasonable level by parallelization. Homogenization is used to compute the effective material properties of the microscale designs and a level-set topology optimization method is used at both scales. The proposed approach is demonstrated using minimum compliance and compliant mechanism design problems.
AB - This paper introduces a new method for multiscale topology optimization, where the topology is optimized at two scales: the macroscale, where the structure is optimized, and the microscale, where the material is optimized. Thus, structure and material are optimized simultaneously. The method introduced in this paper can be used with any number of unique microstructures and solve a wide range of structural design problems. The problem is decomposed such that the computational demands can be maintained at a reasonable level by parallelization. Homogenization is used to compute the effective material properties of the microscale designs and a level-set topology optimization method is used at both scales. The proposed approach is demonstrated using minimum compliance and compliant mechanism design problems.
KW - Level-set method
KW - Material design
KW - Multiscale
KW - Topology optimization
UR - http://www.scopus.com/inward/record.url?scp=84958554771&partnerID=8YFLogxK
U2 - 10.2514/6.2016-0938
DO - 10.2514/6.2016-0938
M3 - Conference contribution
SN - 9781624103926
BT - 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
ER -