Forming Complex-Shaped Advanced Composite Parts

目前的复合材料成形技术在很大程度上受到 缺乏对形成原理的理解， 物理水平。 该项目的目的是开发这一 基本理解，特别强调 对成形性的影响。 研究将集中在 开发数学模型和计算方案， 将形成复杂结构所需的材料变形模式联系起来， 形状到几何特征。 的形成特点 其他先进的复合材料，包括编织材料， 其中编织图案和纤维结构将是至关重要的， 长，不连续的纤维复合材料，其中材料变薄是 还将处理一个特定问题。 这项工作将 主要基于实验和复合材料模型 变形和破坏模式。 来处理大量的零件 形状和可能的纤维路径，计算机辅助设计技术 将被使用，用适当的计算程序修改。 这项研究的最终结果将是“设计， 复合材料成型的制造指南。 此类准则 对工业和航天工业都非常有用 特别是。

Current composite forming techniques suffer greatly from a lack of understanding of the forming principles at a fundamental physical level. The purpose of the project is to develop this fundamental understanding, emphasizing particularly the effects of geometry on formability. The research will concentrate on developing mathematical models and computational schemes that relate the material deformation modes necessary to form complex shapes to geometric features. The forming characteristics of other advanced composite materials, including woven materials, where weave pattern and fiber architecture will be critical, and long, discontinuous fiber composites, where material thinning is a particular problem will also be addressed. This work will be based primarily on experiments, and models of composites deformation and failure modes. To handle the vast array of part shapes and possible fiber paths, computer aided design techniques will be used, modified with appropriate calculation procedures. The final result of this study will be "Design for Manufacture" guidelines for forming composites. Such guidelines will be very useful for industry, and for the aerospace industry in particular.