先进纤维增强的聚合物 composites 逐渐地被用于各种各样的结构的部件。重要过程之一把 composites 压成薄片制作高效一个压热器被帮助 prepreg 上篮。因为把压成薄片的 composites 的质量被痊愈周期大部分影响,为每应用的一个适当痊愈周期的选择是重要的并且必须被优化。因此,巩固的某基本模型和痊愈进程为为一个特定的应用程序选择合适的参数是必要的。这篇文章涉及“流动压缩”在合成材料处理的压热器期间当模特儿。由使用一个加权的剩余方法,为厚 thermosetting composites 的巩固过程的二维的有限元素明确的表达被介绍,相应有限元素代码被开发。包括有一个维、二维的分析溶液的现在的数字结果的比较,数字例子被给说明建议有限元素明确的表达的精确性和有效性。另外,石墨 / 环氧基树脂把压成薄片的 AS4/3501-6 的巩固模拟外面并且与在文学可得到的试验性的结果相比被带。
Advanced fiber reinforced polymer composites have been increasingly applied to various structural components. One of the important processes to fabricate high performance laminated composites is an autoclave assisted prepreg lay-up. Since the quality of laminated composites is largely affected by the cure cycle, selection of an appropriate cure cycle for each application is important and must be optimized. Thus, some fundamental model of the consolidation and cure processes is necessary for selecting suitable parameters for a specific application. This article is concerned with the "flow-compaction" model during the autoclave processing of composite materials. By using a weighted residual method, two-dimensional finite element formulation for the consolidation process of thick thermosetting composites is presented and the corresponding finite element code is developed. Numerical examples, including comparison of the present numerical results with one-dimensional and twodimensional analytical solutions, are given to illustrate the accuracy and effectiveness of the proposed finite element formulation. In addition, a consolidation simulation of AS4/3501-6 graphite/epoxy laminate is carded out and compared with the experimental results available in the literature.