非织造布内部结构重建及其性能模拟的研究进展

Research Progress in Internal Structure Reconstruction and Performance Simulation of Nonwovens

非织造材料的内部纤维堆砌结构对其过滤、压缩、拉伸、断裂及破坏行为等具有重要影响。因此,针对当前非织造布的内部结构表征方法和基于内部结构的各项性能模拟方法进行讨论与分析。介绍了内部结构表征的三种主要建模方法,即随机生长法、Micro-CT法和图像建模法,并对其性能的两种模拟方法(理论模拟和数值模拟)进行文献总结和分析,最后对各方法进行对比和分析,明确未来发展方向及待解决的问题。

The internal fiber stacking structure of nonwovens has an important impact on its filtration,compression,tension,fracture and other properties.Therefore,the current internal structure characterization methods of nonwovens and the progress of various performance simulation methods based on internal structure are discussed and analyzed,and three types of main modeling methods for internal structure characterization are introduced,namely random growth method,Micro-CT method and image modeling method.Furthermore,two main methods for its performance simulation are theoretical simulation and numerical simulation.Finally,the reviewed methods are compared and analyzed to clarify the future development direction and the problems to be solved.