Analysis of Hydrostatic Stresses for Three-point Bend Specimenwith Shallow Crack
Huang Xiaodiao (Department of Mechanical Engineering, East China Institute of Metallurgy, Maanshan 243002, China)
The simple relationship betWeen ω, βand the hydrostatic stress by using theory of slip line field was gained. According to the results of three-dimension FEM computation, the distribution of hydrostatic stress at crack tip has been obtained, the reason about the influence on the decrease of hyfrostatic stress of shallow notch has been analyzed, and the reasonable viewpoint of p and ω in analysis of slip line field has been verified. A new method is provided for theory analysis of shallow crack on the elastic-plastic fractIJre.
【CateGory Index】： TB12