A5012706415- Cellular and Composite Structures
- Structural Analysis and Optimization
- Advanced Materials and Mechanics
Dalian University of Technology
2023-2024
Auxetic kirigami metamaterials (KMs) attain negative Poisson's ratios with periodic slender cuts on thin sheets. The existing auxetic KMs forfeit auxeticity under large tensions because their mainly arises from in-plane deformation, but out-of-plane buckling could arise to cause deviations, and thicker would suffer stress failure. This paper proposes a novel family of that can realize retain for up 0.50 applied strains by fully exploiting in the design model. Numerical experimental results...
Kirigami metamaterials have gained increasing attention due to their unusual mechanical properties under large stretching. However, most metamaterial designs obtained with trial-and-error approaches tend lose desirable tensile strains occurrence of instability caused by out-of-plane buckling. To cope this limitation, paper presents a systematic approach cut layout optimizing for designing kirigami working at fully exploiting buckling behaviors. This method can also mitigate the local stress...