用边界元法对弹性体进行动力分析

Dynamic Analysis of Elastic Body by Boundary Element Method

本文对解瞬态动力问题的Nardini-Brebbia边界元法作了简要介绍,并扩充到解稳态问题.对瞬态和稳态问题各计算了一例,与解析解相比较,结果是满意的.最后对带圆孔的板条的动应力集中系数进行计算和实验测定。

The Nardini-Brebbia BEM for the transient problem is briefly introdu-ced and expanded to steady-state problems.Two examples are included and the results agreed very well with the anylytical solutions.Also, the dynamic-stress concentration foctors of a strip having circular hole are calculated and they are in good agreement with the result of experiments.A few of error in literature are pointed out.