【摘要】 本文用微闪系统研究了冲击载荷作用下,半无限弹性平面中五种型式孔洞附近的动应力分布和动应力集中问题。文中分析了弹性波对孔洞的绕射过程,并测定了几种型式孔洞周边的动应力分布和动应力集中系数随时间的变化规律。更多还原

【Abstract】 By using microflash system, this paper investigates the dynamic stress distribution and stress concentration problem in neighbourhood of different types of cavity in a semi-infinite elastic plane under impulse loading. The diffraction process of elastic wave nearby the cavity is analyzed in this paper. The conditions of time variation of the dynamic stress distribution and stress concentration factor in neighbourhood of different types of cavity are measured in this study.更多还原