A novel bio-inspired microstructure for improved compressive performance of multidirectional CFRP laminates
A novel bio-inspired microstructure for improved compressive performance of multidirectional CFRP laminates
复制标题
一种新型仿生微结构，可提高多向 CFRP 层压板的压缩性能
DOI：
10.1016/j.compositesb.2023.110867
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发表时间：
2023
期刊：
影响因子：
12.8
通讯作者：
Garulli T
中科院分区：
文献类型：
--
作者：
Garulli T
在这项工作中，我们设计、制造、测试和讨论了第一个仿生微结构概念，以增强多向（MD）碳纤维增强聚合物（CFRP）层压板的纵向压缩性能。为此，我们从生物层状材料中汲取灵感；一个显着的例子是深海玻璃海绵Monoraphis chuni 的锚定骨针。我们在数字上设计了各种概念，然后设计了一种策略，在 MD CFRP 层压板中重现在该材料中观察到的刚性和柔软区域的特征交替，然后采用定制程序来制造层压板。我们通过小规模缺口压缩测试以及与工业相关基准层压板的直接比较来评估它们的性能。我们的结果表明，所提出的概念导致失效载荷和失效时平均韧带比应力在统计上显着增加。此外，设计的微观结构显示出延迟应力集中引起的损伤发生和阻止损伤传播的潜力。我们的结论是，所提出的微观结构概念对于承受压缩载荷的轻质结构的设计具有潜在的巨大价值。
In this work, we design, manufacture, test and discuss the first bio-inspired microstructural concept to enhance longitudinal compressive performance of multidirectional (MD) Carbon Fibre Reinforced Polymer (CFRP) laminates. To do so, we take inspiration from biologically occurring layered materials; one remarkable example being the anchoring spicula of the deep-sea glass spongeMonoraphis chuni. We designed numerically various concepts and then devised a strategy to reproduce, in a MD CFRP laminate, the characteristic alternation of stiff and soft regions observed in this material, followed by a bespoke procedure to manufacture the laminate. We evaluated their performances by means of small-scale notched compression tests and direct comparison with an industrially relevant baseline laminate. Our results show that the proposed concept led to a statistically significant increase in the failure load and in the average ligament specific stress at failure. Furthermore, the designed microstructure showed potential to delay damage initiation from a stress concentration and to arrest damage propagation. We conclude that the presented microstructural concept is potentially of great value for the design of lightweight structures undergoing compression loading.
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DOI：
10.1016/j.compositesa.2015.01.002
发表时间：
2015
期刊：
Applied Science and Manufacturing
影响因子：
--
作者：
Tsampas S
通讯作者：
Tsampas S
影响因子：
3.3
作者：
Rajpurohit, Ashok;Joannes, Sebastien;Laiarinandrasana, Lucien
通讯作者：
Laiarinandrasana, Lucien
影响因子：
9.1
作者：
Bullegas G
通讯作者：
Bullegas G
影响因子：
9.1
作者：
G. Bullegas;J. Benoliel;Pier Luigi Fenelli;S. Pinho;S. Pimenta
通讯作者：
G. Bullegas;J. Benoliel;Pier Luigi Fenelli;S. Pinho;S. Pimenta
仿生纤维不连续性混合碳纤维/自增强聚丙烯复合材料的工程拉伸行为
影响因子：
13.1
作者：
Jun Tang;Y. Swolfs;Arya Aslani;L. Mencattelli;G. Bullegas;S. Pinho;S. Lomov;L. Gorbatikh
通讯作者：
L. Gorbatikh