Advanced shape and topology optimization methods have been addressed as the most promising techniques for least-weight and performance design of engineering structures. During the last 30 years, many pioneering works have been presented. The theoretical achievements are obtained both mechanically and mathematically. Nowadays, the great challenge lies in solving more complicated engineering design problems with multidisciplinary objectives or complex structural systems.

The purpose of this special issue is to provide a forum to present new developments in structural shape and topology optimization. We accept regular research papers with theoretical studies, new techniques, and engineering applications, as well as review papers surveying the most recent advances.

Potential topics include, but are not limited to:

• Shape and topology optimization methods
• Engineering structure optimization
• Multiscale structure optimization
• Optimization of composite materials
• Structural multidisciplinary and multiphysics optimization
• Structural uncertain optimization