纺织复合材料预制体成型过程无损检测技术研究进展

纺织复合材料多为各向异性材料，其力学性能很大程度上取决于成型后预制体内纤维的取向。为确保预制体成型后纤维的取向符合产品设计的要求，目前已有多种无损检测技术为纺织复合材料预制体成型过程及质量的检测提供服务。本文结合纺织复合材料预制体织造技术的发展趋势及预制体成型过程对无损检测的需求，就目前广泛用于科研和产业化生产当中的多种无损检测技术(包括接触式测量技术、光学检测技术、热成像检测技术、涡流检测技术、射线检测技术)进行了综述，总结各方法所具有的技术特点、应用情况与存在问题。最后，讨论了纺织复合材料预制体成型过程无损检测技术的发展趋势和面临的挑战。 

Research progress in nondestructive testing technologies for textile composite preform forming process

Most textile composites are anisotropic materials, and their mechanical properties strongly depend on the fiber orientations in the preforms after forming process. In order to guarantee that the fiber orientation of the preforms meeting the requirements of product design, at present, many nondestructive testing technologies have been employed for textile composite preform forming process and quality detection. In this paper, combines with the development trends of textile composite preform preparing technology and nondestructive testing technology requirements on preform forming process, a variety of nondestructive testing technologies which are widely used in scientific research and industrial production are reviewed, including contact measurement technology, optical testing technology, thermography testing technology, eddy current testing technology and radiographic testing technology. The technical characteristics, application and existing problems of each method are summarized. Finally the development trend and the challenges of nondestructive testing technologies for textile composite preform forming process are discussed.