Table 5 Fractal dimensions of surface cracks of specimens with different fissure number.

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

Fissure number/strips

Impact process

Fractal dimension

Fissure number/strips

Impact process

Fractal dimension

0

1

1.4287

1

1

1.4644

2

1.4649

2

1.5274

3

1.5589

3

1.6876

4

1.5796

4

2.1876

2

1

1.4515

3

1

1.4734

2

1.5148

2

1.4846

3

1.5378

3

1.5427

4

1.5510

4

1.5818

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