CAJ | 학술논문

采用有限元方法对由玻璃纤维增强环氧树脂复合材料和金属内衬组成的复合材料气瓶内固化成型工艺进行研究，利用ANSYS仿真软件开发了复合材料气瓶内固化过程的仿真程序，实现复合气瓶固化过程温度和固化度变化规律的数值模拟研究。结果表明，数值模拟与实际实验数据较吻合，算法准确有效；复合材料气瓶固化时的温度是由复合材料内层至外层逐渐传递的，固化时的峰值温度由内向外逐渐提高，气瓶也是逐层固化的，而且固化时间是由内向外逐渐变短。根据模拟结果分析了金属内衬材质、环境温度和复合材料厚度对温度和固化度变化规律的影响。结果表明，环境温度越高，固化时达到峰值温度的时间越早且峰值温度越低，开始固化的时间越早；复合材料越厚，达到峰值温度的时间越晚且峰值温度越高，开始固化的时间越晚；金属内衬材质对薄壁内衬的复合材料气瓶影响微小。
채용유한원방법대유파리섬유증강배양수지복합재료화금속내츤조성적복합재료기병내고화성형공예진행연구，이용ANSYS방진연건개발료복합재료기병내고화과정적방진정서，실현복합기병고화과정온도화고화도변화규률적수치모의연구。결과표명，수치모의여실제실험수거교문합，산법준학유효；복합재료기병고화시적온도시유복합재료내층지외층축점전체적，고화시적봉치온도유내향외축점제고，기병야시축층고화적，이차고화시간시유내향외축점변단。근거모의결과분석료금속내츤재질、배경온도화복합재료후도대온도화고화도변화규률적영향。결과표명，배경온도월고，고화시체도봉치온도적시간월조차봉치온도월저，개시고화적시간월조；복합재료월후，체도봉치온도적시간월만차봉치온도월고，개시고화적시간월만；금속내츤재질대박벽내츤적복합재료기병영향미소。
Internal heat-curing molding process of composite gas cylinder made of glass fiber reinforced epoxy resin and metal liner was studied with finite element method. The simulation program of the internal heat-curing molding process was developed on ANSYS software platform, which realized the numerical simulation research on the changing law of curing temperature and curing degree for the composite gas cylinder. The results indicate that the algorithm result based on the numerical simulation is accordance with the actual experimental data, so the algorithm is accurate and effective. During the curing process of the composite gas cylinder, the temperature is passed from the inner layer of the composite to its outer layer and the peak temperature in the curing process becomes higher from the inner layer to outer layer,the gas cylinder is cured step by step,and curing time becomes shorter gradually from the inner layer to outer layer. The influences of the metal liner materials,environment temperature and the composite thickness on the changing law of curing temperature and curing degree were also analyzed according to the simulation result. The results show when the environment temperature is higher,the time of reaching the curing peak temperature becomes early and the peak temperature is lower,the time of starting curing becomes early. When the composite gets thicker,the time of reaching the curing peak temperature gets later and the peak temperature is higher,the time of starting curing becomes later. The influences of the metal liner materials on this composite cylinder with thin wall liner are small.