Table 6 Fractal dimensions of surface cracks of samples with different fissure dip.

From: Dynamic characteristics and fractal representations of crack propagation of rock with different fissures under multiple impact loadings

Fissure dip/°

Impact process

Fractal dimension

Fissure dip/°

Impact process

Fractal dimension

30

1

1.4311

45

1

1.4068

2

1.4669

2

1.4150

3

1.4907

3

1.4871

4

1.5088

4

1.5025

60

1

1.4048

90

1

1.4238

2

1.4384

2

1.4897

3

1.4993

3

1.5323

4

1.5385

4

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