本文利用自制的光粘弹性材料，用光弹性法研究了在轴向拉伸荷载作用下带有圆孔的杆件中的粘弹性应力集中系数。
A photoelastic study for the viscoelastic stress-concentration factors in bars with a round hole under axial tension load, using self-made viscoelastic materials is presented in this paper.
试验和计算的结果表明：弹性角隅的应力集中系数比椭圆弧角隅降低15%左右。
According to results of tests and calculations, it is shown that the stress concentration coefficient of elastic corner is less about 15% than the ellipse arc corner.
应力集中系数一般由实验确定或由弹性力学方法求出。
Stress concentration factor generally is calculated based elastic mechanics method or empirical equation derived the conclusion of testing.
使用边界单元法计算无限大弹性介质中孔洞周边应力集中系数，可获得较高的计算精度。
High calculation accuracy can be obtained in calculating the concentration factor of the stress around infinite elastic medium cavities by using boundary element method.
本文用动态光弹性方法，分析冲击荷载作用下岩洞周边的动应力分布和动应力集中系数。
In the present paper the dynamic stress distribution and stress con-centration factor in the neighbourhood of caverns under impulse loadingare given by using dynamic photoelastic method.
本文用动态光弹性方法，分析冲击荷载作用下岩洞周边的动应力分布和动应力集中系数。
In the present paper the dynamic stress distribution and stress con-centration factor in the neighbourhood of caverns under impulse loadingare given by using dynamic photoelastic method.
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