Issue 56

H. Bai et alii, Frattura ed Integrità Strutturale, 56 (2021) 16-45; DOI: 10.3221/IGF-ESIS.56.02

1.4

1.4

1.2

1.2

1.0

1.0

0.8

0.8

0.6

0.6

Barite powder for 47.6% Barite powder for 53.2% Barite powder for 57.7% Barite powder for 61.4%

Sand for 47.6% Sand for 53.2% Sand for 57.7% Sand for 61.4%

0.4 Stress (MPa)

0.4 Stress (MPa)

0.2

0.2

0.0

0.0

0.0

0.5

1.0

1.5

2.0

0.0

0.5

1.0

1.5

2.0

Strain (%)

Strain (%)

1.6

1.8

1.6

1.4

1.4

1.2

1.2

1.0

1.0

0.8

0.8

0.6

0.6

Stress (MPa)

Rosin for 1.2% Rosin for 1.7% Rosin for 2.1% Rosin for 2.6%

Stress (MPa)

Epoxy resin-Polyamide for 0% Epoxy resin-Polyamide for 0.47% Epoxy resin-Polyamide for 0.94% Epoxy resin-Polyamide for 1.4%

0.4

0.4

0.2

0.2

0.0

0.0

0.0

0.4

0.8

1.2

1.6

2.0

0.0

0.3

0.6

0.9

1.2

1.5

Strain (%)

Strain (%)

1.4

1.2

1.0

0.8

0.6

0.4 Stress (MPa)

Silicone rubber for 0% Silicone rubber for 0.47% Silicone rubber for 0.94% Silicone rubber for 1.4%

0.2

0.0

0.0

0.4

0.8

1.2

1.6

2.0

Strain (%)

Figure 10: Stress-strain curve of brittle rock-like materials with different raw material ratios.

29