PSI - Issue 39

5

Author name / Structural Integrity Procedia 00 (2019) 000–000

Abdoullah Namdar / Procedia Structural Integrity 39 (2022) 47–56

51

Fig. 4. The embankment-subsoil reinforced model from ABAQUS.

The mechanical properties of the soil and steel are indicating in Table 1. The mechanical properties of soil are modulus elasticity of 24 (MPa), friction angle of 40 (deg), dilatancy angle of 2 (deg), the cohesion of 17 (kPa), unit weight of 18.5 (kN/m 3 ), and Poisson’s ratio of 0.2. The mechanical properties of A36M steel are modulus elasticity of 200,000 (MPa), Poisson’s ratio of 0.3, the shear modulus of 77,000 (MPa), and yield stress of 250 (MPa).

Table 1. Mechanical properties of the soil and steel. Material Modulus elasticity, E (MPa) Friction angle, ϕ (deg) Dilatancy angle , ψ (deg)

Cohesion, C (kPa)

Unit weight, γ (kN/m 3 )

Poisson’s ratio, ν

Shear modulus, G (MPa)

Yield stress, Y s (MPa)

Ref

(Valleti et al., 2018)

Soil

24

40

2

17

18.5

0.2

-

-

Steel (A36M)

(AISC, 2009)

200,000

-

-

-

-

0.3

77000

250

Figure 5 illustrates the completion of this numerical simulation study in form of a flowchart. The seismic data was collecting for simulation acceleration data from the earthquake of 6.2 magnitudes at the Norcia. The modeling of the embankment, subsoil, and geogrid made and shown in figure 1. The main calculation is for obtaining displacement and strain when the subsoil is plain and reinforced soil. The several data are producing from the nonlinear finite element method and assessing and prediction made using a statistical model.