TrngFaceNodeBondList-MasterSlaveNoRotation
Posted: Tue Jan 31, 2017 11:41 amHi,
I have one question related to the Node-Face Constraint List (MasterSlaveNoRotation).
I am performing a simulation of a shear test of a DktShell bonded to a concrete prism (Figure 1). The shell is pulled from one edge. The nodes of the shell are coincident with the nodes of the concrete prism.
In the first simulation I used a NodeNodeConstraintList CNTS MasterSlave to connect the nodes of the shell with the ones of the concrete, obtaining the results showed in Figure 2. The particles follow the behavior of the shell with no relative rotation between one particle and the other ones, and the overall behavior seems to be right.
NodeNodeConstraintList CNTS MasterSlave {
SlaveNodeList CONC
MasterNodeList FRPNod
Tolerance 0.01 mm
}
In the second simulation I used a Node-Face Constraint List to connect the nodes of the shell with the ones of the concrete, obtaining the results showed in Figure 3.
TrngFaceNodeBondList BNDS {
NodeList CONC
FaceList Shell
Tolerance 0.01 mm
MasterSlaveNoRotations
}
I cannot understand why even if I am using a MasterSlaveNoRotation, particles in Figure 3 rotate. This behavior causes some errors in the load response leading to higher values of the maximum load.
I have one question related to the Node-Face Constraint List (MasterSlaveNoRotation).
I am performing a simulation of a shear test of a DktShell bonded to a concrete prism (Figure 1). The shell is pulled from one edge. The nodes of the shell are coincident with the nodes of the concrete prism.
- Figure1.png (165.47 KiB) Viewed 9275 times
In the first simulation I used a NodeNodeConstraintList CNTS MasterSlave to connect the nodes of the shell with the ones of the concrete, obtaining the results showed in Figure 2. The particles follow the behavior of the shell with no relative rotation between one particle and the other ones, and the overall behavior seems to be right.
NodeNodeConstraintList CNTS MasterSlave {
SlaveNodeList CONC
MasterNodeList FRPNod
Tolerance 0.01 mm
}
- Figure2.png (132.37 KiB) Viewed 9275 times
In the second simulation I used a Node-Face Constraint List to connect the nodes of the shell with the ones of the concrete, obtaining the results showed in Figure 3.
TrngFaceNodeBondList BNDS {
NodeList CONC
FaceList Shell
Tolerance 0.01 mm
MasterSlaveNoRotations
}
- Figure3.png (166.07 KiB) Viewed 9275 times
I cannot understand why even if I am using a MasterSlaveNoRotation, particles in Figure 3 rotate. This behavior causes some errors in the load response leading to higher values of the maximum load.