【摘要】 对于复合材料中受拉纤维束以及工程中常遇到的平行杆系承载问题,给出两种普遍的分析方法。确定性方法得到杆系的应力应变关系及其强度;统计性方法得到杆系强度的分布函数、均值和方差。指出这两种分析方法之间的关系。假设了杆系强度分布函数,具体分析了二种平行杆系的变形破坏过程及其强度的统计特征。更多还原

【Abstract】 The fiber bundle model (parallel bar model)under tensile loading, which iswidely used to simplify the engineening problem, is analyzed by two kinds of generalmethods. The first is determinant method used to deduce the stress-strain relation ofthe Parallel bar including and its strength, the second is statistical method used to de-duce the strength distribution of the parallel bar models, and its averag value and vari-ance. The relation between the two analysis methods is shown. According to the differ-ent engineering problems. base on the suppore of the strength distribution of the bars,the deformation and failure process of two kinds of the parallel bar model are analysed.更多还原