原文：http://shenzhen.chinacompositesexpo.com/en/news-detail-92-16918.htmlRecently, inspired by barnacles found in the ocean, the Advanced Marine Composites and Structures team from the School of Aerospace and Civil Engineering at Harbin Engineering University has successfully developed a novel carbon fiber honeycomb structure. Resembling a miniature "pyramid," this innovative design allows the material to be "light as a feather" while significantly enhancing its shear resistance, providing a new solution to the long-standing challenge of lightweighting in aerospace materials.

The team engineered a "pyramid honeycomb" structure, replacing the traditional vertical sidewalls with slanted ones. This arrangement closely stacks small pyramid-like units, fully leveraging carbon fiber's exceptional tensile and compressive strength. Similar to the cables of a suspension bridge, the inclined geometry effectively distributes loads. To validate the design, the team fabricated pyramid honeycomb cores with an extremely low density of only 17-31.7 kg/m³ (approximately 1/30th the density of water). Tests confirmed that at an equal weight, the new honeycomb structure far surpasses traditional composite honeycombs in both shear strength and stiffness, filling a critical gap for ultra-low-density structures requiring high shear performance.

Experimental results demonstrate that the "light yet strong" properties of this new carbon fiber honeycomb hold immense application potential in the aerospace sector. For spacecraft components such as satellite antenna reflectors and solar panels, which must maintain high-precision shapes in space, the structure's superior thermal stability can effectively counteract deformations caused by extreme temperature fluctuations. In aircraft structures, using this material for wing skins or cabin flooring could reduce weight while improving resistance to aerodynamic shear forces, thereby lowering fuel consumption. For industrial-scale production, the material's performance can be flexibly tailored by simply adjusting the design parameters and raw material wall thickness (as thin as 0.03 mm), without the need for complex molds, laying a solid foundation for mass production. 文章来源：http://shenzhen.chinacompositesexpo.com/en/news-detail-92-16918.html