预制V型裂纹尖端应力强度因子的研究

Study of the Stress Intensity Factor of Preformed V Shape Fracture Tip

本文提出了爆炸载荷作用下预制V型裂纹的复变应力函数,并用Westergaard方法推导了预制V型裂纹尖端的应力场和位移场,从而得到了V型裂纹尖端的应力强度因子.爆破试验结果表明了公式的正确性.

This paper gives the complex stress function of preformed V shape fracture under the blasting load. With Westergaard's method, the stress field and displacement field of preformed V shape fracture tip are derived, and hence its stress intensity factor is obtained. The blasting test result shows that the formulas derived are correct and effective