Aerospace ; nuts , anchor , self locking , fixed , two lug , reduced series , with counterbore ; classification : 1100 mpa 235 c ; german version en 2752 : 1989 航空航天.带圆柱形划孔双面截短法兰自锁式铆接螺母
En2752 aerospace series . nuts , anchor , self locking , fixed , two lug , reduced series , with counterbore . classification : 1100 mpa 235 degrees celsius 航空航天系列.沉头减径双耳自锁安装防松螺母.分类. 1100mpa 235
The numerical example shows that if we use the correct guess integral , this method will give right answer . it has good performance for both p - version and hybrid stress fem . last , a hybrid stress finite element with second stress completion is presented , which keeps the virtue of normal hybrid finite element , especially good for incompressble material , because it can avoid the self lock of displacement and instability of stress results 第一部分还首次提出了一个满足二次应力完备的杂交应力单元,它的应力满足二次应力完备,而且通过巧妙的应力插值函数,避免了一般杂交应力元的矩阵求逆过程,而通常这个求逆过程都是很耗时的,这个二次应力完备杂交元保持了一般杂交元的优点,对于不可压缩问题具有较好的性能。