Composite Structures, Journal Year: 2024, Volume and Issue: 340, P. 118210 - 118210
Published: May 14, 2024
Language: Английский
Composite Structures, Journal Year: 2024, Volume and Issue: 340, P. 118210 - 118210
Published: May 14, 2024
Language: Английский
International Journal of Mechanical Sciences, Journal Year: 2025, Volume and Issue: unknown, P. 110123 - 110123
Published: March 1, 2025
Language: Английский
Citations
3Virtual and Physical Prototyping, Journal Year: 2025, Volume and Issue: 20(1)
Published: Jan. 15, 2025
This study presents the development of kirigami-based auxetic metamaterials with multistability and shape-morphing capabilities through a design optimisation framework leveraging machine learning technology. The employs surrogate models differential evolution algorithm to optimise variables kirigami cell, ensuring specified bistability scalability conditions. cell-level is extended structure-level, where each cell optimised for its assigned scalability. For multistability, structure divided into subregions distinct levels, conducted accordingly. shape morphing, expansion ratio predefined according target geometry, performed ensure required Various structures, combining different levels geometries, are optimally designed additively manufactured experimental validation. results confirm that proposed effectively controls behaviour, enabling tunable shapes morphing programmed transformation sequences.
Language: Английский
Citations
2International Journal of Mechanical Sciences, Journal Year: 2023, Volume and Issue: 261, P. 108692 - 108692
Published: Aug. 25, 2023
Language: Английский
Citations
38International Journal of Mechanical Sciences, Journal Year: 2023, Volume and Issue: 256, P. 108488 - 108488
Published: May 24, 2023
Language: Английский
Citations
26Composite Structures, Journal Year: 2023, Volume and Issue: 323, P. 117474 - 117474
Published: Aug. 15, 2023
Language: Английский
Citations
25International Journal of Mechanical Sciences, Journal Year: 2023, Volume and Issue: 258, P. 108590 - 108590
Published: July 2, 2023
Language: Английский
Citations
24International Journal of Mechanical Sciences, Journal Year: 2024, Volume and Issue: 268, P. 109024 - 109024
Published: Jan. 8, 2024
Language: Английский
Citations
16Composite Structures, Journal Year: 2024, Volume and Issue: 337, P. 118032 - 118032
Published: March 16, 2024
This manuscript presents a pioneering three-dimensional lattice structure that can simultaneously exhibit negative Poisson's ratio (NPR), compressibility (NC), and thermal expansion (NTE). The coexistence of the three indexes, whether in natural materials or artificial structures, is extremely rare. unit cell integrates an auxetic egg-rack with non-auxetic cage-like structure. Analytical expressions for elastic constants are derived by using Euler-Bernoulli beam theory subsequently validated through finite element simulations. analytical results show exhibits not only NPR, but also NC direction specific areas as well NTE direction, certain areas, even throughout entire volume when appropriately tailored geometries constituent employed. Furthermore, parametric analysis revealed these properties be adjusted within broader range, encompassing positive values, enabling diverse combinations. Metamaterials possess multiple adjustable enable development multifunctional devices capable adapting to mechanical loads, hydrostatic pressures, temperature fluctuations.
Language: Английский
Citations
16Thin-Walled Structures, Journal Year: 2024, Volume and Issue: 197, P. 111596 - 111596
Published: Jan. 17, 2024
Language: Английский
Citations
15Virtual and Physical Prototyping, Journal Year: 2024, Volume and Issue: 19(1)
Published: Feb. 28, 2024
The cuttlebone is known for its ability to possess high specific stiffness, progressive failure and lightweight from the porous chambered structure. Inspired by microstructural characteristics of incorporating wall gradient design, a series double-asymmetric honeycombs were designed processed LPBF. Results indicated that bionic structural units with junction design can maintain integrity residual parts after local buckling failure, improving load-bearing capacity. honeycomb gradation parameter α = 2/3 achieved maximum compressive strength 70.64 MPa cm3/g. As decreases, there an increase in energy absorption narrowing hysteresis loop. as-build had undergone stress-induced martensite transformation during compression. dissipated mechanical (ME) decreased increasing cycle number decreasing α. results provide guidelines process strategies developing high-performance honeycombs.
Language: Английский
Citations
13