【摘要】 基于金属-陶瓷复合材料的计算细观力学方法,将其扩展应用于高能固体推进剂,结合计算机虚拟实验,采用面向对象的程序设计方法,设计并实现了高能固体推进剂力学性能预示系统。该系统依据固体推进剂的细观结构特征对不同的夹杂材料选择不同的随机分布规律、体积分数、颗粒尺寸等,能快速获得随机生成的几何模型,并对高能固体推进剂的力学性能进行预示。与实验结果的对比表明该系统可以较好地预示具有不同组分比、不同细观结构特征的高能固体推进剂的初始模量、极限强度和极限延伸率。该系统的设计可以对固体推进剂进行反复试验、修正结果,从而大幅度地提高固体推进剂的设计效率,缩短研发周期和降低生产消耗成本。更多还原

【Abstract】 The computational micro-mechanics method,originally based on ceramic/metal composites,is utilized to the response analysis of high-energy solid propellants.The prediction system for mechanics response of high-energy propellants is developed,which involves computational virtual experiments,the object-oriented design with the finite element method.Geometrical model is constructed based on the real microstructure characteristics of high-energy propellants in this system.This model can adapt by different volume percents,different grain sizes,and different random distribution,for different materials of inclusions.Prediction results by this system,compared with experiments,are effective.The design of the response prediction system of high-energy solid propellants can reduce the design and productions cost,and shorten the production period.更多还原