The Investigation on Dynamic Property of Polymer-based Composites Codified with Carbon Aerogel

• Main Authors: Ming-Chao Su, 蘇明昭
• Other Authors: Tsung-Han Hsieh
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/64138051895118409440

碩士 === 國立高雄應用科技大學 === 模具工程系碩士班 === 102 === In this study, carbon aerogels were used as the nano-reinforcement to modified epoxy polymer composites. The effect caused by the addition of carbon aerogel with varying weight fractions on the dynamic properties, i.e. natural frequency and damping, was investigated. The addition of the carbon aerogels to the epoxy increases the stiffness of the nanocomposites, consequently, the natural frequency is increased. The damping performance of the carbon aerogel/epoxy nanocomposites is improved due to the addition of the nano-reinforcements during dynamic loading. Finite element method was used to predict the vibration mode and natural frequency, and the predicted results were compared with the experimental results. The effect of the mass of the dynamic testing equipment on the simulation was under consideration. Half-energy method was used to calculate the loss factor from the dynamic testing data. Finally, the nanocomposites were used as the core materials to form sandwich structures with the surfaces made from fiber-reinforces polymers, and the dynamic properties of the sandwich structures were investigates