Figure 4

NaCl concentration at the central line of the specimen, the compression displacement (δ(t)), and the reaction force, F(t), as a function of time for TEST B. (a) NaCl concentration at the central line and at three different locations (z/h = 1, 1/4, and 7/8) within the specimen as a function of time. The concentration at the surface of the specimen (z = h) as a function of time was prescribed throughout the test. (b) The prescribed compression displacement, δ(t), as a function of time. (c) The predicted reaction force as a function of time, F(t). The reaction force reached a steady-state value (F ₀) within 2000 s. The setup for the numerical test is shown in Fig. 1, with d = 32.0 mm and h = 5.00 mm. The material properties used are listed in Table 1 (TEST B).