耦合: (coupled analysis), that means movement in different material should be continuous. In other ok{!+VCB5
xr%#dVk
word, the displacement in every node should be continuous. For example, in two different >/=> B7
$n!K6fkX%
material(soil and concrete or steel), the stiffnesses are huge different, the displacements in the joint }ptq
)p
fuMJdAuY7d
nodes will occur problem without coupled model(the node displacements calculated from two jointed xfFg,9w8
Nd@~>&F
element are different). So the interface elements are introduced to solve KzV 2MO-$
( Un_!)
this issue. But there still is problem for crack or big displacement because Finite Element Method 69G`2_eKCp
y7)(LQRE
{
hard handle these problems from its assumption. F_H82BE+3
.i Hn5S GA
相互: (interaction), that means the structure will affect the soil behavior. For example, the lateral displace from the structure in retaining structure will affect the lateral earth pressure coefficient(K0,Ka, Kp) and so on. e <cM[6H'D
VIJ<``9[
Hope some help!
