耦合: (coupled analysis), that means movement in different material should be continuous. In other "I)*W8wTn
cZ!%#A z
word, the displacement in every node should be continuous. For example, in two different F|eKt/> e
.3{PgrZ
material(soil and concrete or steel), the stiffnesses are huge different, the displacements in the joint dW32O2@-
_;;'/rs
j
nodes will occur problem without coupled model(the node displacements calculated from two jointed /G zA89N(
?f\;z<e|
element are different). So the interface elements are introduced to solve u9 t@%H)lZ
"1<>c/h
this issue. But there still is problem for crack or big displacement because Finite Element Method 9rB,7%@EL
bD&^-&
G
hard handle these problems from its assumption. DP(JsZ}
Qj?qWVapA
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. !L+4YA
Z# +{ksU
Hope some help!
