Issue 56

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

1.2

1.2

1.0

1.0

0.8

0.8

0.6

0.6

Barite powder for 35.4% Barite powder for 39% Barite powder for 42.7% Barite powder for 45.1%

0.4

0.4

Sand for 59% Sand for 63.3% Sand for 66.8% Sand for 69.7%

Axial stress (MPa)

Axial stress (MPa)

0.2

0.2

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0.0

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0.0

Axial strain (%)

Axial strain (%)

1.8

1.2

1.6

1.0

1.4

1.2

0.8

1.0

0.6

0.8

Epoxy resin-Polyamide for 0.9% Epoxy resin-Polyamide for 1.4% Epoxy resin-Polyamide for 1.9% Epoxy resin-Polyamide for 2.3%

0.6

0.4

Silicone rubber for 0% Silicone rubber for 0.6% Silicone rubber for 1.2% Silicone rubber for 1.7%

0.4 Axial stress (MPa)

Axial stress (MPa)

0.2

0.2

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 0.0

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0.0

Axial strain (%)

Axial strain (%)

1.8

1.4

1.5

1.2

1.0

1.2

0.8

0.9

0.6

Rosin for 0% Rosin for 0.2% Rosin for 0.5% Rosin for 0.7%

Rosin for 0% Rosin for 0.2% Rosin for 0.5% Rosin for 0.7%

0.6

0.4

Axial stress (MPa)

Axial stress (MPa)

0.3

0.2

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0.0

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0.0

Axial strain (%)

Axial strain (%)

Figure 5: Stress-strain curve of ductile rock-like materials with different raw material ratios.

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