摘要
研究了苯基硅橡胶在-40~20℃时的动态刚度、应变能密度和疲劳寿命,并验证了实验结果与基于裂缝生长理论的疲劳寿命计算式的符合程度。结果表明,随着温度的升高,苯基硅橡胶的动态刚度、应变能密度下降,疲劳寿命增加,且疲劳特性满足基于裂缝生长理论的疲劳寿命模型预测。
We studied the dynamic stiffness,strain energy density,and fatigue life of phenyl silicone rubber at-40~20℃,and verified the consistency between the experimental results and the fatigue life calculation formula based on crack growth theory.The results show that when the temperature increases,the phenyl silicone rubber decreases its dynamic stffness and strain energy density,but increases the fatigue life,whose characteristics meet the prediction model of the fatigue life.
作者
王文博
赵晓健
黄艳华
苏正涛
WANG Wenbo;ZHAO Xiaojian;HUANG Yanhua;SU Zhengtao(Beijing Institute of Aeronautical Materials,Beijing 100095,China)
出处
《有机硅材料》
CAS
2024年第3期27-29,42,共4页
Silicone Material
关键词
苯基硅橡胶
温度
裂纹增长理论
动态刚度
疲劳寿命
phenyl silicone rubber
temperature
crack growth theory
dynamic stffness
fatigue life
