Fig. 2: Visualization of the fracture growth and the dynamic changes of the stress field in two directions.
From: StressNet - Deep learning to predict stress with fracture propagation in brittle materials
a is the propagation of cracks and the simulation ends when a single crack spans the width of the material, which is shown in the yellow-highlighted region. The white lines represent cracks and the black background represents the normal material. b represents the stress field of σxx and (c) represents the stress field of σyy. According to the yellow dashed boxes highlighted in this figure, the stress tends to concentrate on the tips of existing cracks, and moreover, the cracks will grow because of the stress concentration.
