Topology optimization design of recoverable bistable structures for energy absorption with embedded shape memory alloys

Liang, Kuan; Zhou, Shaojie; Luo, Yangjun; Zhang, Xiaopeng; Kang, Zhan

doi:10.1016/j.tws.2024.111757

Cited by 11 publications

(1 citation statement)

References 60 publications

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“…Modeling and simulation work provides possibilities for material distribution and structural topology optimization. Multi-objective optimization algorithms can be employed to fine-tune the design parameters, maximizing performance while meeting specific requirements [175,176]. This can involve optimizing for minimal energy consumption during state transitions and reprogram process, maximum structural efficiency, or specific mechanical properties.…”

Section: Materials and Structural Optimization Designmentioning

confidence: 99%

A review on reprogrammable bistable structures

Zhang,

Yin,

Chen

et al. 2024

Smart Mater. Struct.

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Bistable structures have attracted attention due to their unique properties and potential applications in soft robotics, logic gates and energy harvesting devices. The bi-stability is always an inherent property if the bistable structures are pre-designed. A reprogrammable bistable structure that does not require re-designing and re-fabricating the prototype is highly desirable. Despite its vast potential and burgeoning interest, the field of reprogrammable bistable structures lacks a cohesive and comprehensive review. Therefore, this paper presents a state-of-the-art review of recent advances in the basic structural forms, key parameters determining bistable characteristics, active regulation mechanisms, and potential applications of reprogrammable bistable structures. It also presents the remaining challenges and suggests possible future research directions in the field of reprogrammable bistable structures. This review will provide valuable insights for researchers and engineers to explore the vast potential of reprogrammable bistable structures.

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Section: Materials and Structural Optimization Designmentioning

confidence: 99%

A review on reprogrammable bistable structures

Zhang,

Yin,

Chen

et al. 2024

Smart Mater. Struct.

View full text Add to dashboard Cite

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Multifunctional Metamaterial with Reconfigurable Electromagnetic Scattering Properties for Advanced Stealth and Adaptive Applications

Wang,

Li,

Liao

et al. 2024

Advanced Materials

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The rapid development of radar detection systems has led to an increased sensitivity to the electromagnetic (EM) scattering properties of detected targets. Flexible and adaptable EM scattering properties significantly enhance the survivability of battlefield weapons. This paper presents the design of a novel multifunctional metamaterial with reconfigurable EM scattering properties based on a bistable curved beam. In addition to the cushioning and energy absorption properties of curved beams, the metamaterial achieves more than 90% EM absorption in the frequency range of 2.17–17.31 GHz, with a relative thickness of only 0.09λL. The bistable nature of the metamaterial allows it to switch between different states. Moreover, combined with the digital coding, this metamaterial can continuously adjust the absorbing bandwidth and further enhance the EM absorption rate within a specific frequency band range. If applied to satellite configurations, the developed metamaterial significantly reduces the radar cross section and offers potential applications in reconfiguring EM scattering properties, when applied to satellite configurations. By actively controller and reconstructing the EM scattering properties at certain frequency points, the metamaterial can achieve camouflage, providing innovative solutions for future stealth technology, electronic countermeasures, and deception jamming in radar detection.

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