热塑性复合材料由于其良好的可焊接性、可循环利用性、抗化学腐蚀性，特别是短时间内就可加工成型等特点，在未来航空航天构件制造领域有着广阔的应用前景。纤维铺放过程中涉及一系列的物理现象，涵盖传热学、热力学、结晶动力学，牛顿流体力学等学科及这些学科的交叉领域。本文以上述学科的相关知识为理论依据，对纤维铺放工艺中的加热工艺，冷却工艺，铺层间强度，纤维铺放压力和残余热应力五方面内容，通过分析其理论模型的建立和求解方法，介绍和讨论了纤维铺放过程中与最终产品质量相关的基体材料结晶度、铺层间紧密接触程度、铺层间熔合度等关键问题及其中涉及的铺放温度、铺放速率、铺放压力等主要工艺参数。同时，本文还总结了国外的研究成果和研究进展，指出其中存在的一些问题，并对今后纤维铺放工艺的研究方向进行了展望。
Abstract
The thermoplastic composites, which are known for their weldability, recyclability, chemical resistance, and rapid forming, will become common engineering materials in aerospace industry. There are some physical phenomena during fiber placement process, which involves some fields and cross-fields, such as heat transfer, thermomechanics, crystallization kinetics, Newtonian fluid mechanics and so on. Based on above theories, this article analyses theoretical models of heating process, cooling process, interlaminar bond strength, fiber placement compaction load and thermal residual stress, and discusses the influence factors of final products performance, such as matrix material crystallinity, the degree of inter laminar intimate contact, the degree of interlaminar diffusion and so on. The research achievements and research process are summarized and analyzed in this paper, and some problems which still existed and need to be resolved are discussed. The future development trend of fiber placement is also predicted.
关键词
热塑性复合材料 /
纤维铺放 /
加热工艺 /
冷却工艺 /
铺层间强度 /
残余热应力
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Key words
thermoplastic composite /
fiber placement /
heating process /
cooling process /
interlaminar bond strength /
thermal residual stress
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参考文献
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脚注
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基金
国家自然科学基金资助项目（51005060）；国家科技重大专项资助项目（2009ZX04004-111）
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