Special Issue "New Trends in Structural Optimization"

Submission Deadline: 28 February 2022
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Guest Editors
Prof. Weisheng Zhang, Dalian University of Technology, China
Prof. Gilho Yoon, Hanyang University, South Korea
Prof. Akihiro Takezawa, Waseda University, Japan


Structural optimization, which devotes to designing lightweight products subject to performance constraints, has qualified as an important tool in engineering applications involving material design. The approach is generally classified into three groups: sizing, shape, and topology optimization. Recently, structural optimization has gained ever increasing attentions in both academic and industrial aspects. Along with huge engineering potentials, new challenges also emerge when structural optimization is applied for solving new problems. Such new challenging issues (e.g., manufacturing constraints), entangled with those long-time issues (e.g., multiscale/nonlinear optimization) pose severe limitation on the use of traditional structural optimization approaches .


This special issue therefore is focused on the recent developments of structural optimization approach and its application in dealing with the current challenge issues of great attentions.

Topics of interest for this special issue include but are not limited to recent developments for:


• Novel and efficient structural optimization algorithms

• Structural optimization handling manufacture constraints

• New methods to solve multi-objective structural optimization problems

• Nonlinear structural optimization problems

• Microstructure design and multiscale structural optimization

• Multi-physics design problems

• Structural design considering uncertainties 

Structural optimization; shape optimization; topology optimization

Published Papers
  • Construction of Design Guidelines for Optimal Automotive Frame Shape Based on Statistical Approach and Mechanical Analysis
  • Abstract A body frame composed of thin sheet metal is a crucial structure that determines the safety performance of a vehicle. Designing a correct weight and high-performance automotive body is an emerging engineering problem. To improve the performance of the automotive frame, we attempt to reconstruct its design criteria based on statistical and mechanical approaches. At first, a fundamental study on the frame strength is conducted and a cross-sectional shape optimization problem is developed for designing the cross-sectional shape of an automobile frame having a very high mass efficiency for strength. Shape optimization is carried out using the nonlinear finite element… More
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  • Bilateral Filter for the Optimization of Composite Structures
  • Abstract In the present study, we propose to integrate the bilateral filter into the Shepard-interpolation-based method for the optimization of composite structures. The bilateral filter is used to avoid defects in the structure that may arise due to the gap/overlap of adjacent fiber tows or excessive curvature of fiber tows. According to the bilateral filter, sensitivities at design points in the filter area are smoothed by both domain filtering and range filtering. Then, the filtered sensitivities are used to update the design variables. Through several numerical examples, the effectiveness of the method was verified. More
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