Multiscale Biomimetic Study of the Mechanics of Fish Scales

鱼鳞力学的多尺度仿生研究

• 批准号: 0927585
• 负责人: Franck Vernerey
• 金额: $ 22.81万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0927585&HistoricalAwards=false
• 关键词: Multiscale; Biomimetic; Study; Mechanics; Fish

The research objective of this award is to develop a methodology to investigate the deformation and failure mechanisms of the scaled skin of fish for biomimetic applications. This protective system resists penetration thanks to extremely tough scales made of a nanostructured mineral/collagen composite material. In addition, scaled skin is ultra-light, ultra-thin and compliant. The proposed research will deploy a wide array of experimental and modeling techniques to investigate this complex system and to pinpoint which structural features are key to its performance. More specifically, the objectives of the project are (i) to characterize the microstructure of the fish skin system across several lengths, (ii) to measure its mechanical properties and assess its deformation and failure mechanisms, (iii) to develop multiscale continuum damage models for their failure and (iv) to use these models to establish guidelines for the biomimetic design of fiber-reinforced composite and scaled-structures. Such a bio-inspired material will duplicate the key mechanisms found in fish-scales while using different components.If successful, the results of this research will find applications in full body personal armor systems, high-performance protective coating or morphing aircraft skins. A deliverable of this award will be a computational tool that will guide the design of bio-inspired material, such that they reproduce the high-performance of biological materials while made of different building blocks. The methodology will be tested by constructing a prototype of a synthetic fish-scale structure. This research will be an avenue to expose undergraduate engineering students to the potential of bio-inspiration in engineering through undergraduate research experiences. In addition, an international dimension will be brought to the project through a strong research collaboration between McGill University (Canada) and CU-Boulder, allowing students broaden their research experience.

该奖项的研究目标是开发一种方法来研究仿生应用中鱼鳞皮肤的变形和失效机制。这一保护系统可抵抗渗透，这要归功于由纳米结构矿物/胶原蛋白复合材料制成的极其坚韧的鳞片。此外，鳞状皮肤超轻，超薄和顺应性。拟议的研究将部署广泛的实验和建模技术来研究这个复杂的系统，并查明哪些结构特征是其性能的关键。更具体地说，该项目的目标是：（一）在几个长度的鱼皮系统的微观结构的特点，（二）测量其机械性能和评估其变形和故障机制，（三）开发多尺度连续损伤模型的失败和（四）使用这些模型建立纤维增强复合材料和缩放结构的仿生设计准则。这种生物启发材料将复制鱼鳞中发现的关键机制，同时使用不同的成分。如果成功，这项研究的结果将在全身个人装甲系统，高性能保护涂层或变形飞机蒙皮中找到应用。该奖项的交付成果将是一个计算工具，该工具将指导生物灵感材料的设计，使它们在由不同构建块制成的同时再现生物材料的高性能。将通过建造一个合成鱼鳞结构的原型来测试这一方法。这项研究将是一个途径，暴露本科工程专业的学生通过本科生的研究经验，在工程生物灵感的潜力。此外，国际层面将通过麦吉尔大学（加拿大）和CU-Boulder之间的强有力的研究合作，使学生扩大他们的研究经验。