13th International Conference on Fracture June 16–21, 2013, Beijing, China -6- (a) (b) (c) (d) (e) Fig.4 Crack propagation process (a) Step = 6; (b) Step = 16; (c) Step = 30; (d) Step = 50; (e) Crack tip zone zoomed in at Step =50. (Node displacement is magnified 200 times.) 0 0.02 0.04 0.06 0.08 0.1 0.12 0 200 400 600 800 1000 Loading-point displacement (mm) Load P (N) Exper. Esize1 Esize2 Esize3 Esize4 Fig.5 Comparison between the simulated load-displacement curves and the experimental results. (‘Exper.’ denotes the experimental results. The beam is discretized into N segments along the width in the middle cross section of beam. Esize1, Esize2 ,Esize3 and Esize4 correspond to the segment number 32, 64,128,and 256, respectively.)
RkJQdWJsaXNoZXIy MjM0NDE=