Research on Failure Characteristics of Concrete Three-Point Bending Beams with Preexisting Cracks in Different Positions Based on Numerical Simulation

Figure 3

Failure mode of concrete three-point bending beams with different values of .

(a)  mm

(b)  mm

(c)  mm

(d)  mm

(e)  mm

(f)  mm

(g)  mm

(h)  mm

(i)  mm

(j)  mm