Multiscale topology optimization for structures with tailored porous structured materials

Raghavendra Sivapuram; Peter D. Dunning; H. Alicia Kim

doi:10.2514/6.2016-0938

Multiscale topology optimization for structures with tailored porous structured materials

Raghavendra Sivapuram, Peter D. Dunning, H. Alicia Kim

Engineering

Research output: Chapter in Book/Report/Conference proceeding › Published conference contribution

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	https://doi.org/10.2514/6.2016-0938
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/Territory	United States
City	San Diego
Period	4/01/16 → 8/01/16

Keywords

Level-set method
Material design
Multiscale
Topology optimization

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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 › Published conference contribution

Sivapuram, R, Dunning, PD & Kim, HA 2016, Multiscale topology optimization for structures with tailored porous structured materials. in 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference., 0938, American Institute of Aeronautics and Astronautics Inc, AIAA, 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2016, San Diego, United States, 4/01/16. https://doi.org/10.2514/6.2016-0938

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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.

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KW - Material design

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M3 - Published conference contribution

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BT - 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

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Y2 - 4 January 2016 through 8 January 2016

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Multiscale topology optimization for structures with tailored porous structured materials

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Keywords

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