Table 9 Modified HJC model parameters.

Basic mechanical parameters

ρ₀ (kg/m³)

2739

2726

2741

G (GPa)

7.4

8.253

20.428

f_c (MPa)

83.073

43.514

118.037

T (MPa)

16.882

14.31

9.471

Strength parameters

A

0.2322

0.3581

0.2306

B

1.567

1.472

1.749

N

0.779

0.775

0.8019

S_max

7

7

7

Rate effect parameters

m

-15.032

-19.921

-5.484

n

7.206

9.525

2.925

Damage parameters

D₁

0.0155

0.0036

0.0106

D₂

1

1

1

Pressure parameters

ε_min(E-3)

5.744

1.767

2.612

p_c (MPa)

27.691

14.505

39.346

μ_c(E-3)

3.475

1.100

1.189

p_l (MPa)

800

800

800

μ_l

0.1

0.1

0.1

K₁ (GPa)

85

85

85

K₂ (GPa)

-171

-171

-171

K₃ (GPa)

208

208

208