Origami-inspired highly impact-resistant metamaterial with loading-associated mechanism and localization mitigation

International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110114 - 110114

Опубликована: Март 1, 2025

Язык: Английский

---

Bio-Inspired Thin-Walled Straight and Tapered Tubes with Variable Designs Subjected to Multiple Impact Angles for Building Constructions

Buildings, Год журнала: 2025, Номер 15(4), С. 620 - 620

Опубликована: Фев. 17, 2025

Thin-walled structures are extensively utilized in construction because of their lightweight nature and excellent energy absorption efficiency, especially under dynamic loads. Improving the energy-absorbing performance thin-walled by inspiring natural multi-cell designs is a sufficient approach. This paper investigates characteristics variable novel cross-section subjected to oblique impact loading. Straight tapered types with seven cross-sectional were studied. The nonlinear ABAQUS/Explicit software 6.13 version was implemented analyze crashworthiness behaviors for proposed different loading angles. crushing examined various wall thicknesses 0.5 mm, 1.5 2.5 mm angles 0°, 15°, 30°, 45°. It determined that can be efficiently controlled varying two geometries designs. A multi-criteria decision-making method (MCDM) using complex proportional assessment (COPRAS) performed select optimum shown square structure thickness had best performances (EA) 11.01 kJ specific (SEA) 20.32 kJ/kg 30° angle. Moreover, results indicated EA decreased increase In addition, angle, peak force (PCF) reflected reduction absorbed at larger MCDM conjunction COPRAS proposed; it provides valuable insights safer more resilient building construction.

Язык: Английский

---

An origami-wheeled robot with variable width and enhanced sand walking versatility

Thin-Walled Structures, Год журнала: 2024, Номер 206, С. 112645 - 112645

Опубликована: Ноя. 2, 2024

Язык: Английский

---

Unflat-foldable Square-Twist origami composite structure with bistable load-bearing capability

International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 109936 - 109936

Опубликована: Янв. 1, 2025

Язык: Английский

---

Quasi‐Static Compression Response and Energy Absorption of CNTF/EP Origami Thin‐Walled Tubes

Advanced Materials Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Янв. 5, 2025

Abstract This study investigates the quasi‐static compression response and energy absorption characteristics of origami‐inspired thin‐walled tubes fabricated from carbon nanotube film/epoxy (CNTF/EP). The tests are performed on origami tubes, square circular made other common materials for comparison, key mechanical performance indicators, including initial peak force (PF), (EA), specific (SEA), mean crushing (MCF), load efficiency (CLE), evaluated. deformation modes during observed analyzed, revealing four typical patterns. Among them, there both good bad modes, which significantly affect compressive tube. Additionally, effects introducing creases at different positions behavior explored. Tests conducted to verify reusability tubes. exhibited significant improvements in PF, SEA, MCF after manual recovery cyclic testing, indicating their potential reusability. With excellent properties, foldability, reusability, CNTF/EP suitable various impact mitigation applications.

Язык: Английский

---

Effect of Perforation Gradient on Compressive Properties of Single and Double Square Tubes

Опубликована: Янв. 1, 2025

Язык: Английский

---

A gradient-like thin-walled tube via adhesive bonding for energy absorption

International Journal of Adhesion and Adhesives, Год журнала: 2025, Номер unknown, С. 104015 - 104015

Опубликована: Март 1, 2025

Язык: Английский

---

Research on the axial compression mechanical behavior of thin-walled foam-filled components with metal/CFRP composite and origami patterns

Journal of Composite Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 24, 2025

The combination of metals and carbon fiber reinforced polymer (CFRP) composites to fabricate thin-walled tubes has excellent energy absorption potential. Introducing origami patterns filling with polyurethane foam can affect the deformation process composite tube, significantly improving its performance. This study investigates characteristics CFRP/metal filled components under quasi-static axial loads through experiments numerical simulations. First, performance metal is analyzed, effect on their examined. It found that exhibit significant improvement in compared individual or CFRP tubes. Additionally, incorporation enhances stability tube improves characteristics. Subsequently, effects design parameters, such as winding angle ratio (10°) circumferential (90°) angles, dihedral pattern, number pattern layers, are studied detail. results show an increase load fluctuations decrease, stable progressive fracture occurs, When 150° layers 5, optimal.

Язык: Английский

---

Elasticity of origami-inspired honeycombs

International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110231 - 110231

Опубликована: Апрель 1, 2025

Язык: Английский

---

Effect of perforation gradient on compressive properties of single and double square tubes

Materials Today Communications, Год журнала: 2025, Номер unknown, С. 112665 - 112665

Опубликована: Апрель 1, 2025

Язык: Английский

---