Experimental Study on the Caustics of Moving Cracks and Elliptical Curvature under Impact Loading

Figure 5

Moving crack trajectory diagrams through elliptical defects. (a) In from the left and out from the middle. (b) In from the left and out from the right. (c) In from the right and out from the middle. (d) In from the right and out from the left. (e) Into the middle and out from the left. (f) Into the middle and out from the middle. (g) Into the middle and out from the right.