Xiaodong Xu, Nathanael Leung, Urangua Jargalsaikhan, Evi Bongaers, Tan Sui
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引用次数: 0
Abstract
Trans-laminar fracture is an important topic for engineering composites. In this study, trans-laminar fracture initiation in quasi-isotropic carbon/epoxy laminates made of non-crimp fabrics was examined using in situ fast synchrotron X-ray radiography and ex situ X-ray computed tomography. The maximum split lengths were measured by in situ radiography and were compared with the predicted values in a detailed FE model using cohesive elements. Ex situ computed tomography scans were also conducted to confirm that no fibre breakage occurs before the final load drop in the experiments. In situ and ex situ observations are complementary for the understanding of damage initiation.
跨层断裂是工程复合材料的一个重要课题。在这项研究中，使用原位快速同步辐射 X 射线射线照相术和原位 X 射线计算机断层扫描检查了由非卷曲织物制成的准各向同性碳/环氧层压板的跨层断裂起始情况。原位射线照相术测量了最大裂缝长度，并将其与使用内聚元素的详细 FE 模型中的预测值进行了比较。此外，还进行了原位计算机断层扫描，以确认在实验中最终载荷下降之前没有发生纤维断裂。原位和非原位观测结果对于了解损伤的起因具有互补性。
期刊介绍：
Applied Composite Materials is an international journal dedicated to the publication of original full-length papers, review articles and short communications of the highest quality that advance the development and application of engineering composite materials. Its articles identify problems that limit the performance and reliability of the composite material and composite part; and propose solutions that lead to innovation in design and the successful exploitation and commercialization of composite materials across the widest spectrum of engineering uses. The main focus is on the quantitative descriptions of material systems and processing routes.
Coverage includes management of time-dependent changes in microscopic and macroscopic structure and its exploitation from the material''s conception through to its eventual obsolescence.
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