CAJ | 학술논문

为优化树脂基复合材料修补片固化工艺参数，采用有限元分析方法，建立了复合材料层合板修补片热固化过程的物理模型和数学模型，基于这些模型对复合材料预浸料修补片固化过程中温度和固化度的变化规律进行了数值模拟，分析了不同固化阶段预浸料修补片内部的温度分布，对比了修补片内部不同点的固化过程；研究了升温速率、补片厚度和补片形状等因素对补片固化过程中温度和固化度的影响。仿真计算结果表明：升温速率越快，固化完成时间越短，但修补片内温度梯度越大；补片越厚，固化完成时间越短，且补片内部温度梯度越小；非穿透性挖补修理的补片形状对补片固化过程中温度和固化度的影响可忽略。
위우화수지기복합재료수보편고화공예삼수，채용유한원분석방법，건립료복합재료층합판수보편열고화과정적물리모형화수학모형，기우저사모형대복합재료예침료수보편고화과정중온도화고화도적변화규률진행료수치모의，분석료불동고화계단예침료수보편내부적온도분포，대비료수보편내부불동점적고화과정；연구료승온속솔、보편후도화보편형상등인소대보편고화과정중온도화고화도적영향。방진계산결과표명：승온속솔월쾌，고화완성시간월단，단수보편내온도제도월대；보편월후，고화완성시간월단，차보편내부온도제도월소；비천투성알보수리적보편형상대보편고화과정중온도화고화도적영향가홀략。
In order to optimize the curing parameter of resin matrix composite patches,a physical model and a mathematical model for composite laminate patches during thermal curing process were established by finite element method. Based on these models,numerical simulations were made to study the variation rules of temperature and curing degree during the curing process of the composite prepreg patches. The internal temperature distributions in prepreg repair patches were analyzed for different curing stages,and the curing processes at different points inside the patches were compared. The influences of heating rate,the patch thickness,and patch shape on the temperature and curing degree during curing process were also studied. The simulation results show that a faster heating rate can shorten the time for completing the curing process,and result in a higher temperature gradient within the patch;a more thick patch needs a shorter curing time and has a lower internal temperature gradient;and,the effect of the patch shape on the temperature and curing degree can be ignored for the non-penetrating repair.