A study about the impact of the topological arrangement of fibers on fiber-reinforced composites: Some guidelines aiming at the development of new ultra-stiff and ultra-soft metamaterials
A study about the impact of the topological arrangement of fibers on fiber-reinforced composites: Some guidelines aiming at the development of new ultra-stiff and ultra-soft metamaterials
复制标题
关于纤维拓扑排列对纤维增强复合材料影响的研究：旨在开发新型超硬和超软超材料的一些指南
DOI：
10.1016/j.ijsolstr.2020.07.016
复制
发表时间：
2020
影响因子：
3.6
通讯作者：
D. Scerrato
中科院分区：
文献类型：
--
作者：
I. Giorgio;A. Ciallella;D. Scerrato
纤维增强复合材料具有多方面的特点，在许多领域显示出巨大的应用潜力。弯曲纤维的使用有助于进一步增强这种本已广泛的可能性。在本文中，我们提出了两种特殊的纤维排列方式，旨在实现超硬和超软复合材料。为此，我们探索了基于等静态线的纹理，它受到生物灵感的启发，获得了高强度的复合材料和受电弓图案，它能够以非常低的阻力实现相当大的位移。为了模拟这些特殊的晶格板，我们在应变梯度弹性理论的框架内考虑了平面内的正交各向异性薄板。使用有限元方法进行了数值模拟，以研究所考虑的织构的力学行为。将纤维平行于矩形样品边缘的规则直织构作为比较的参考织构。通过一些测试，我们表明，对于所考虑的纹理，即均衡纹理和缩放式纹理，位移力图相差几个数量级，从而证明了对其行为的表征是合理的。
Fiber-reinforced composites are materials that display a great potentiality in many applications for their multifaceted features. The employment of curved fibers contributes to enhancing this already wide range of possibilities further. In this paper, we propose two particular fiber arrangements with the intention of realizing ultra-stiff and ultra-soft composites. For this purpose, we explore the texture based on isostatic lines, which is bio-inspired to obtain a high strength composite and the pantographic pattern, which enables considerable displacement with very low resistance. To model these particular lattice plates, we consider an in-plane orthotropic lamina within the framework of the strain-gradient elasticity theory. Numerical simulations have been performed using the finite element method to investigate the mechanical behavior of the considered textures. A regular straight texture with fibers parallel to the edges of a rectangular sample has been taken into account as reference texture for comparison. Through some tests, we show that for the considered textures, namely the isostatic and the pantographic ones, the displacement force graphs differ by several orders of magnitude, justifying the characterization of their behavior.
影响因子：
2.4
作者：
Misra, Anil;Lekszycki, Tomasz;Dell'Isola, Francesco
通讯作者：
Dell'Isola, Francesco
缩放晶胞的参数实验揭示了局部极值配置
影响因子：
2.4
作者：
Nejadsadeghi, N.;De Angelo, M.;Drobnicki, R.;Lekszycki, T.;dell’Isola, F.;Misra, A.
通讯作者：
Misra, A.