变形
材料科学
皱纹
复合材料
刚度
结构工程
剪切(地质)
纤维增强塑料
凯夫拉
复合数
计算机科学
工程类
计算机视觉
作者
Rui Wu,Jian Sun,Zhizhong Chang,Rui Bai,Jinsong Leng
标识
DOI:10.1177/1045389x14526796
摘要
This study is focused on developing a morphing skin that can perform ±30° pure shear morphing. Carbon fibre–reinforced plastic rods–reinforced and Kevlar-reinforced silicone rubber matrix composite skin is designed, fabricated, tested, and utilized on the demonstrator wing. This skin design has achieved satisfactory wrinkle onset angle (>50°) without applying pre-tension or pre-stretch, low in-plane shear stiffness that allows the skin of 1 m 2 to perform 30° shear morphing under 30 kg actuating force, designable out-of-plane stiffness, considerable damage tolerance, and simplicity in fabrication. This article describes the designing process of the skin, where a carbon fiber–reinforced plastic rod–reinforced skin is tested and revised to the final design; the study on the mechanism of different types of wrinkles as well as the strategies of wrinkles reduction, where two complementary wrinkle characterization methods are used; analysis and testing on out-of-plane stiffness; and finally, the utilization of skin on a demonstrator morphing wing structure. The presented skin can also be used as morphing face sheet.
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