Elastic-Plastic Behavior of Compacted Loess under Direct and Cyclic Tension

Table 6

Model parameters from the best-fitting stress-strain curves.

Loading curves

1st

2nd

3rd

4th

E (MPa)

a

b

c

E (MPa)

a

b

c

E (MPa)

a

b

c

E (MPa)

a

b

c

Pattern I

21.1

−180

123

5

15.9

−276

137

1

149

−221

132

−3

13.1

−155

1135

−6

Pattern II

21.6

−532

160

4

16.3

−232

128

2

17.2

−160

121

−3

12.0

−185

1305

−11