Thin-Walled Structures, Год журнала: 2024, Номер unknown, С. 112879 - 112879
Опубликована: Дек. 1, 2024
Язык: Английский
Mechanics Based Design of Structures and Machines, Год журнала: 2025, Номер unknown, С. 1 - 25
Опубликована: Янв. 2, 2025
Sine wave structures have potential applications in anti-collision devices because they reduce the initial peak crushing force (PCF) through active control of folds. However, stability structure during energy absorption needs to be improved. This study proposes a variable-amplitude wave-shaped tube inspired by squid fins at longitudinal direction and horsetail grass transverse direction. Under multidirectional loading quasi-static compression environment, specific capacity (SEA) factor (EASF) squid-fin-horsetail-inspired (SFHT) are evaluated investigating geometrical parameters (inner diameter, wall thickness, number connecting wings, sublayers). The results show that, although folding mechanism characteristic corrugated is changed when tubes reinforced with still ensures reduction PCF. Moreover, performance SFHT improved 170% compared traditional impact box. At same time, SEA optimized sublayers 1, inner diameter 0.5D, wings 6, while EASF stable under multi-directional load. In addition, has better more than other single-core multi-core boxes axial As additive manufacturing technology becomes popular, shows applied automotive systems or similar fields.
Язык: Английский
Процитировано
0
Engineering Structures, Год журнала: 2025, Номер 328, С. 119727 - 119727
Опубликована: Янв. 24, 2025
Язык: Английский
Процитировано
0
Thin-Walled Structures, Год журнала: 2025, Номер unknown, С. 113174 - 113174
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0
Thin-Walled Structures, Год журнала: 2025, Номер unknown, С. 113230 - 113230
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0
Journal of Sandwich Structures & Materials, Год журнала: 2024, Номер 26(7), С. 1129 - 1164
Опубликована: Авг. 18, 2024
Auxetic metamaterials, characterized by their negative Poisson’s ratio, offer promising prospects for utilization in absorbing energy during quasi-static compressive loading as well applications requiring impact absorption. The optimization of auxetic structures’ geometrical parameters can improve performance. This research aims to optimize the design an structure maximum specific absorption and investigate its behavior under high-velocity loading. cross-petal are optimized using genetic algorithm a neural network surrogate model. is examined compared with that basic finite element simulations. then evaluated core sandwich panel, two plates placed front rear. Simulations projectile impacts at velocities ranging from 100 250 m/s reveal panel’s behavior. Results indicate 69.82% increase capacity In impact, panel optimal outperforms one core. At more than minimum perforation velocity, contributes about 64%–67% total absorbed panel.
Язык: Английский
Процитировано
3
Advanced Materials, Год журнала: 2024, Номер unknown
Опубликована: Авг. 23, 2024
Abstract The rapid development of radar detection systems has led to an increased sensitivity the electromagnetic (EM) scattering properties detected targets. Flexible and adaptable EM significantly enhance survivability battlefield weapons. This paper presents design a novel multifunctional metamaterial with reconfigurable based on bistable curved beam. In addition cushioning energy absorption beams, achieves more than 90% in frequency range 2.17–17.31 GHz, relative thickness only 0.09 λ L . nature allows it switch between different states. Moreover, combined digital coding, this can continuously adjust absorbing bandwidth further rate within specific band range. If applied satellite configurations, developed reduces cross section offers potential applications reconfiguring properties, when configurations. By actively controller reconstructing at certain points, achieve camouflage, providing innovative solutions for future stealth technology, electronic countermeasures, deception jamming detection.
Язык: Английский
Процитировано
3
International Journal of Mechanical Sciences, Год журнала: 2024, Номер 284, С. 109771 - 109771
Опубликована: Окт. 8, 2024
Язык: Английский
Процитировано
2
Thin-Walled Structures, Год журнала: 2024, Номер unknown, С. 112797 - 112797
Опубликована: Дек. 1, 2024
Язык: Английский
Процитировано
2
Measurement Science and Technology, Год журнала: 2024, Номер 35(12), С. 122001 - 122001
Опубликована: Авг. 29, 2024
Abstract Shape memory alloys (SMAs) have garnered substantial attention due to their remarkable properties and diverse applications with 3D printing techniques. The present work comprehensively reviews applied various SMAs. paper examines different techniques for SMAs discusses the process parameters crucial printability. potential of lies in ability create complex geometries customized designs that are unattainable through conventional manufacturing methods. Thus, printed used across fields, including biomedicine, aerospace, engineering, consumer goods. While recognizing notable progress achieved, review addresses ongoing challenges such as attaining consistent microstructures, post-processing cost-effective production. It also highlights future prospects, development new compositions, expanded other fields. As a result, offers succinct comprehensive report on using printing, which could serve useful resource scientists, engineers, researchers, industry work.
Язык: Английский
Процитировано
1
International Journal of Mechanical Sciences, Год журнала: 2024, Номер unknown, С. 109793 - 109793
Опубликована: Окт. 1, 2024
Язык: Английский
Процитировано
1