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Fabricating Metamaterials Using the Fiber Drawing Method
Published on: October 18, 2012
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基于自锁可变结构的理想能吸收元材料.
Kuan Liang1, Xiaopeng Zhang1, Qi Zhao1
1State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, Dalian, 116024, China. zhangxiaopeng@dlut.edu.cn.
Materials horizons
|May 7, 2025
概括
这项研究引入了一种新的能吸收超材料,它将高效的能量吸收与自锁机制相结合. 这种先进的材料为多功能应用提供了更好的冲击保护和可编程性.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 超材料是什么?超材料是什么?
背景情况:
- 当前的能量吸收材料往往缺乏足够的容量或自锁功能.
- 需要使用具有增强冲击保护和控制能耗的先进材料.
研究的目的:
- 开发一种具有矩形力位移曲线和自锁能力的新型能吸收元材料.
- 提高能量吸收能力,并引入对冲击保护系统的可编程性.
主要方法:
- 拓优化被用来定制曲线梁.
- 一个快速合适的结构被集成,以创建一个自锁机制.
- 增材制造被用于实验验证.
主要成果:
- 设计的超材料实现了不到8.55%的力位移曲线误差.
- 与未经优化结构相比,能量吸收能力增加了75% .
- 连续的稳定状态锁定确保了设计精度和可靠性.
结论:
- 这种新型的超材料提供了卓越的能量吸收和自锁能力.
- 该设计显示了高可编程性和灵活调整的冲击保护.
- 这项工作为开发可控制和优化的能量吸收系统提供了新的途径.
相关概念视频
Pulmonary Tuberculosis I
Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Pulmonary Tuberculosis II
Tuberculosis, or TB, is a bacterial infectious disease caused by Mycobacterium tuberculosis. While its primary impact is on the lungs, leading to pulmonary tuberculosis, it can also affect various other organs, a condition referred to as extrapulmonary tuberculosis.
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Pulmonary Tuberculosis III
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The first classification is based on the development of the disease, and it includes the following categories:
The first classification is based on the development of the disease, and it includes the following categories:
Pulmonary Tuberculosis IV
Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
Pulmonary Tuberculosis V
Medical management of tuberculosis (TB) patients involves a comprehensive approach that includes diagnosis, treatment, and monitoring. The specific strategies can vary depending on the type of tuberculosis (latent or active), the patient's overall health status, and other considerations.
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the progression...
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