Effect of Temperature/Humidity on The Static and Fatigue Strength of Aluminum Honeycomb Sandwich Structure under Bending Loading

• Main Authors: Lin, Hung-Pin, 林鴻斌
• Other Authors: Jen, Yi-Ming
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/57009611450709745797

碩士 === 中華大學 === 機械工程學系碩士班 === 98 === To understand the effect of temperature/humidity on the bending strength of aluminum honeycomb sandwich panels, the static and cyclic bending strength of the aluminum honeycomb sandwich panels under various environmental conditions will be experimentally analyzed in this study. According to the response of industrial users, the major cause of the fatigue failure of aluminum honeycomb panels is the adhesive debonding between the panel and the cell core. Furthermore, the local hot-wet environment will reduce the fatigue strength apparently. A systemic analysis on the relation between the temperature/humidity and the strength of the honeycomb sandwich panels is necessary urgently. In the study, the static and fatigue strengths of the aluminum honeycomb sandwich panels are evaluated experimentally under 7 controlled temperature/humidity conditions. In general, the experimental results show that the static/fatigue strength under low temperature environments is slightly higher to that at room temperature. Moreover, the static/fatigue strength of the honeycomb sandwich panels decreases significantly under high temperature environments compared with that at room temperature and the humidity is found to have moderate effect on the static/fatigue strength of the honeycomb sandwich panels.