Dynamic Response and Stochastic Mechanics of Composite Materials and Structures

由复合材料制成的机械零部件和结构广泛应用于机械、汽车、航空航天、发电和传动等领域，包括绿色技术、体育器材、医疗器械和民用基础设施工程应用。申请人已经制定了一项长期研究计划，目标是为现有和新的实际应用构思、设计和开发创新的高性能复合材料部件和结构。申请人正在进行的研究计划的长期目标是：(1)概念化安全、可靠、成本效益高、创新和高性能的复合材料部件和结构；(2)准确确定此类部件和结构的关键故障、动态响应和动态不稳定性；(3)针对此类部件和结构所需的可靠性和性能要求进行优化设计。在接下来的5年里，将对一类特定的先进复合材料结构--“变截面复合材料结构”--进行深入而创新的研究。重点将放在平面和曲线变截面组合梁和板上。将制造这种组合梁和板的样品，并对其进行振动响应和故障测试。将进行高级计算建模以及此类结构的应力、动态和失效分析。将进行具有成本效益的创新组合梁和板的设计。将在这项研究中招募和培训一些本科生和研究生。积极寻求和利用产业协作和国际网络。拟议的研究将大大有助于加拿大工程行业提高全球竞争力和盈利能力，从而为加拿大的经济发展做出重大贡献。它还服务于加拿大学术部门，吸引和培养具有全球竞争力、高技能和非常有才华的学生和工程师。将产生高质量和尖端的研究成果，并在国际研究媒体和会议上发表。

Mechanical components and structures made of composite materials are extensively being used in mechanical, automotive, aerospace, power generation and transmission including green technology, sporting equipment, medical instruments, and civil infrastructure engineering applications. The applicant has developed a long-term research program with the goal of conception, design and development of innovative high-performance composite components and structures for practical existing and new applications. The long-term objectives of the applicant's on-going research program have been: (1) To conceptualize safe, reliable, cost-effective, innovative and high-performance composite components and structures; (2) To determine accurately the critical failures, dynamic response, and dynamic instabilities of such components and structures; (3) To develop optimal designs for desired reliability and performance requirements of such components and structures. Over the next 5 years, intensive and innovative research on a certain specific class of advanced composite structures, called "tapered composite structures" will be conducted. Emphasis will be placed on flat and curved tapered composite beams and plates. Samples of such composite beams and plates will be manufactured and tested for vibration response and failures. Advanced computational modeling and the stress, dynamic and failure analyses of such structures will be conducted. The cost-effective design of innovative composite beams and plates will be performed. A number of undergraduate and graduate students will be recruited and trained in the research. Industrial collaboration and international networking will be actively sought and used. The proposed research will serve significantly the Canadian engineering industries in making them even more globally competitive and profitable, and hence contributes significantly to the economic development of Canada. It also serves the Canadian academic sector in attracting and training globally-competitive, highly skilled, and very talented students and engineers. High quality and cutting-edge research results will be generated and published in international research media and meetings.