Developement of CFRP mirror having nano-order accuracy

开发出纳米级精度的CFRP反射镜

• 批准号: 22760627
• 负责人: KOYANAGI jun
• 金额: $ 2.25万
• 依托单位: Japan Aerospace Exploration Agency Tokyo University of Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22760627/
• 关键词: CFRP; 長期耐久性; 変形; 航空宇宙材料; 複合材料; 鏡面精度; 耐久性; ミラー

Since carbon fiber reinforced polymeric composite material (CFRP) is superior to not only the specific stiffness also in-plane thermal stability, it may be suitable to use as mirror. Before applying CFRP to the mirror, several problems should be solved; one of them is long-term reliability of mirror surface accuracy. It is reported that there exist a "print-through" problem for CFRP mirror surface. The long-term assurance of the surface roughness has not been discussed nevertheless the mechanical property of CFRP is inherently time-dependent. There is a possibility that the time-dependent deformation of the material deteriorates the mirror surface accuracy. The deformation induced by physical ageing, dewater and internal stress relaxation of the matrix may change the surface accuracy. A deformation induced by temperature change is another problem. Time and temperature dependence of the surface accuracy is studied for CFRP sandwich mirror.

由于碳纤维增强聚合物复合材料（CFRP）不仅优于特定的刚度，而且还优于平面内热稳定性，因此它可能适合用作镜子。在将CFRP应用于镜子之前，应解决一些问题。其中之一是镜面精度的长期可靠性。据报道，CFRP镜面表面存在“打印”问题。尽管如此，尚未讨论表面粗糙度的长期保证，但CFRP的机械特性本质上是时间依赖性的。材料的时间依赖性变形可能会恶化镜面精度。物理衰老，脱水和内部应力松弛引起的变形可能会改变表面精度。温度变化引起的变形是另一个问题。研究了CFRP三明治镜的表面精度的时间和温度依赖性。

项目成果

Prediction of long-term durability of unidirectional CFRP

• DOI: 10.1177/0731684411420314
• 发表时间: 2011-08-01
• 期刊: JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
• 影响因子: 3.1
• 作者: Koyanagi, Jun;Nakada, Masayuki;Miyano, Yasushi
• 通讯作者: Miyano, Yasushi

Time-Dependent Internal Damage Progress and Residual Strength in Notched Composite Laminates

• DOI: 10.1299/jmmp.6.701
• 发表时间: 2012
• 期刊: Journal of Solid Mechanics and Materials Engineering
• 作者: J. Koyanagi;Y. Adachi;S. Arikawa;S. Yoneyama

Time-dependent progressive damage and residual strength of notched composite laminates

• 发表时间: 2011-12
• 作者: J. Koyanagi;S. Yoneyama;Y. Adachi;S. Arikawa

Simple method for obtaining viscoelastic parameters of polymeric materials by incorporating physical-aging effects

通过结合物理老化效应获得聚合物材料粘弹性参数的简单方法

• 发表时间: 2012
• 期刊: Mechanics of Time-Dependent Materials
• 影响因子: 2.5
• 作者: Yoshihiko Arao;Yukie Okudoi;Jun Koyanagi;Shin-ich Takeda;Hiroyuki Kawada
• 通讯作者: Hiroyuki Kawada

CFRPサンドイッチミラーの鏡面精度の時間・温度依存性

CFRP夹层镜面精度的时间和温度依赖性

• 发表时间: 2012
• 期刊: 材料システム
• 作者: Jun Koyanagi;Masayuki Nakada;Yasushi Miyano;Jun Koyanagi;小柳 潤
• 通讯作者: 小柳 潤