Design and Manufacturing of Composites

复合材料结构的设计和制造变得越来越复杂。 为了以一致的、可重复的方式制造结构，必须将基本理论知识和关于可能影响制造该结构所需的工艺的参数的实践知识相结合。 人们需要知道“如何更好地设计零件”。 在当前最先进的技术水平中，有一些方法和现有的模型控制着制造零件的许多方面，从基本设计到最终制造。 本研究计划的目的是找到一种方法来优化和改进复合材料结构的设计，分析和制造，以制造更好，更一致的零件。 现有的模型和软件工具是专门的“独立”工具，只能帮助设计的某些方面，或者它们可能只对一种类型的材料起作用。 以自动纤维铺放（Automated Fiber Placement）等复合材料制造工艺为例。 航空航天工业希望使用AFP工艺制造大型复合材料飞机机身，但必须处理用于设计、应力分析、纤维放置和加工/固化的单独的软件工具。 飞机最关键部分的整体设计过程是复杂的。更精细的建模工具应该能够以优化的方式联合收割机或集成从这些单独的工具获得的信息。 此外，通常还存在特定于应用的其他方面，并且可能需要考虑（例如环境影响、疲劳、振动和阻尼）。本研究中开发的建模和优化工具将通过对使用碳、凯夫拉、玻璃纤维和天然纤维材料等各种复合材料的复合结构进行广泛测试来验证。 总之，本研究的目的是整合新的和现有的复合材料的设计方法，并找到有效的方法来优化使用这些材料的结构设计。从HQP培训的角度来看，这项研究也是非常有益的，因为工业需要复合材料设计和制造领域的能力。

Design and manufacturing of composite material structures is becoming increasingly complex. In order to fabricate structures in a consistent, repeatable manner, there must be a combination of basic theoretical knowledge and practical knowledge about the parameters that might affect the processes needed to manufacture that structure. One needs to know "how to design parts better". In the current state-of-the-art, there are methods and existing models that govern many aspects of making a part, from basic design to final manufacturing. The purpose of this research program is to find a way to optimize and improve the design, analysis and manufacturing of composite material structures in order make better and more consistent parts. The models and software tools that exist are exclusively "stand-alone" tools that can help with only certain aspects of design or maybe they function for only one type of material. Take a composite manufacturing process such as Automated Fiber Placement as an example. The aerospace industry would like to make a large composite aircraft fuselage using the AFP process, but one has to deal with separate software tools for design, stress analysis, fiber placement and processing/curing. The overall design process for the most critical part of the aircraft is complicated. A more refined modeling tool should be able to combine or integrate the information gained from these separate tools in an optimized way. In addition, there are often other aspects which are specific to an application, and which may need to be considered (environmental effects, fatigue, vibration and damping as examples). Modeling and optimization tools developed in this research will be verified by extensive testing of composite structures using a variety of composite materials such as carbon, Kevlar, fiberglass and natural fiber materials. In summary, the purpose of this research is to integrate design methods for new and existing composite materials and to find efficient ways to optimize the design of structures using these materials. This research is also very beneficial from the standpoint of HQP training because industry needs competency in the areas of composites design and manufacturing.