In regard of the effect on stress intensity factor , a macro - element method to calculate stress intensity factor is simplified to analyze the variety of the stress intensity factor under different crack eccentricity ratio 对于偏心裂纹应力强度因子,在计算方法上有效地简化了文献[ 5 ]中提出的大单元有限元计算模型,并且用于分析裂纹偏心度对于应力强度因子的影响。
To generalize the eccentricity ratio effect on ultimate tensile strength of ductile plates , the elesto - plastic finite element method is undertaken and a mathematical transition expression of normalized ultimate tensile strength of center - cracked , eccentrically cracked , edge - cracked plates is accordingly deduced 对于偏心裂纹延性板,采用弹塑性有限元进行了大量的组合计算,分析了相对裂纹长度、材料屈强比和裂纹偏心度对板的拉伸极限强度的影响,并给出了方便计算的回归公式。
The series solution of the eccentric spherical capacitor ’ s capacitance has been obtained based on the bispherical coordinate system and strict derivetion , and through making programe to compute to get the numerical relation between the capacitance and the eccentrity , pionted out that the capacitance not let up but enlarged with the gain of eccentriccity 四、采用双球坐标系严格求解了偏心球形电容器的电容。得到了它的级数解,求得了偏心球形电容器电容大小随偏心度变化的规律,发现偏心球形电容器电容的大小并不是随偏心率的增加而减小,而是随偏心率的增加而增加的。