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Published in: Meccanica 8/2019

26-06-2019

Design of buckling constrained multiphase material structures using continuum topology optimization

Authors: Quoc Hoan Doan, Dongkyu Lee, Jaehong Lee, Joowon Kang

Published in: Meccanica | Issue 8/2019

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Abstract

This study contributes to a possibility of evaluating composite structures configuration such as steel and concrete using buckling and volume constraints based on multi-material topology optimization. A Jacobi active-phase algorithm is used to generate multiphase topology optimization. It provides a rational solution appropriated to the topology optimizer, Method of Moving Asymptotes due to the conflict in updating the design variables. A modified material interpolation scheme solving spurious buckling modes problem which occurs in the multi-material topology optimization process is given and discussed. An investigation of buckling constraint parameter is described. It allows a single-objective minimum compliance topology optimization to obtain two objectives of maximizing both structure stiffness and first buckling load factor. The optimal changing topologies of single material structure and multi-material structure corresponding to different buckling constraints are presented. Numerical examples of compression-only structures and compression-tension structures considering structural instability are performed using both single material and multiple materials to verify the efficiency and superiority of the present method.

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Metadata
Title
Design of buckling constrained multiphase material structures using continuum topology optimization
Authors
Quoc Hoan Doan
Dongkyu Lee
Jaehong Lee
Joowon Kang
Publication date
26-06-2019
Publisher
Springer Netherlands
Published in
Meccanica / Issue 8/2019
Print ISSN: 0025-6455
Electronic ISSN: 1572-9648
DOI
https://doi.org/10.1007/s11012-019-01009-z

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