Issue 69

M. B. Prince et alii, Frattura ed Integrità Strutturale, 69 (2024) 154-180; DOI: 10.3221/IGF-ESIS.69.12

Corresponding values and reference

Parameters

Selected value

30-35 ° [28]

31 °

Dilatation Angle

Flow potential eccentricity, ε The ratio of biaxial and uniaxial compressive strength, σ b0 / σ c0

0.1[31]

0.1

1.16 [29]

1.16

0.667 [29]

0.667

K c

viscosity coefficient, μ

0.01-0.0001 [30]

0.0001

Table 4: The parameters used in the CDP model.

Parameters

Equation

-6

c,r c ε =(700+172 f )×10

Strain for peak compression strength, ε c,r

0.54 t,r ε =f ×65×10 t,r

-6

Strain for peak tension strength, ε t,r Descending parameters of compression curve, α c Descending parameters of compression curve, α t

0.785 c α =0.157f -0.905 c

2

t α =0.312f Table 5: Used equation for developing parameter for CDP model [26,27]. t,r

Figure 3: Constitutive curve of the concrete-damaged plasticity model [27]. Eqns. (3)-(6) are used to calculate the plastic compressive and tensile strains of concrete, according to Niu et al. [32].

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