Study on Dynamic Erosion Behavior of 20# Steel of Natural Gas Gathering Pipeline

Figure 8

Stress contour of the target at different impact velocities: (a) 10 m/s, (b) 12.5 m/s, (c) 15 m/s, (d) 17.5 m/s, and (e) 20 m/s (the left figures are 30° and the right figures are 75°).

(a)

(b)

(c)

(d)

(e)