【摘要】 随机纤维网络材料广泛存在于生物材料和人造复合材料中，具有密度低、孔隙率高、比表面积大、变形能力强、比性能优异和结构可调控等优势，在过滤吸收、隔热减振、化学催化、组织工程、柔性电子和航空航天等领域中发挥了重要作用。与传统的均匀连续介质相比，随机纤维网络材料具有十分复杂的内部微观结构，因而对其力学性能的研究始终围绕着探索微观结构特征与宏观力学响应之间的关系展开。针对随机纤维网络材料力学性能综述，主要包括微观结构表征和力学性能研究评述两个方面，总结了试验测试、本构关系和数值模拟等方面的研究成果及其所面临的关键问题，对随机纤维网络材料力学性能的研究发展趋势进行了展望。更多还原

【Abstract】 Random fiber network materials are ubiquitous in biological and artificial materials and extensively utilized in filtration and absorption, thermal insulation and shock absorption, chemical catalysis, tissue engineering, flexible electronics and aerospace because of their low density, high porosity, large specific surface area, strong deformation ability, excellent specific performances and controllable structures. However, when compared to traditional homogeneous continuous materials, the intricate microstructure of random fiber networks poses significant challenges in studying their mechanical properties. This article provides an extensive review of the research progress made on random fiber networks from two focal points: microstructure characterization and evaluation of mechanical performance. It summarizes the key accomplishments and unresolved issues, encompassing experimental testing, establishment of constitutive relationships,and numerical simulations pertaining to these materials. Additionally, the contribution emphasizes the emerging trends in the research of mechanical performance for random fiber networks.更多还原