NicoleCaio
Marine/Ocean
- Nov 9, 2014
- 4
Dear All,
I'd need to model the behavior of a part of a ship deck structure on which is bonded a steel plate with an adhesive epoxy compound. In first approximation I would like to represent a perfect bond, in order to get the stress distribution on the structure without caring about debonding issues.
I've created only one part in Abaqus CAE with three different solid features (selecting "keep internal boundaries" for each solid-extruded) for the deck plating, the adhesive layer and the steel plate, assigning different material properties and meshing them separately.
I used solid homogeneous sections and 3d stress element for the mesh.
I took care to have partitioned the deck plating so that the central surface on which there will be the bonding on, it has meshed in the same way of the layer above.
Are the nodes of the surfaces in contact already shared, being all the structure on the same part? should I define some constraint between the bonded features?I had the warning “There are 3 unconnected regions in the model”, so I've tried with a surface-based tie constraint between the deck and the adhesive and the adhesive and the steel plate.
Then I receive these warnings:
“No constraint is formed for the tied pair (assembly_slave_surf_adhesive, assembly_mast_surf_deck) . All the slave nodes are part of the master surface.”
“No constraint is formed for the tied pair (assembly_slave_surf_steel, assembly_mast_surf-adhes). All the slave nodes are part of the master surface.”
and still the previous one.
many thanks in advance,
Nicole
I'd need to model the behavior of a part of a ship deck structure on which is bonded a steel plate with an adhesive epoxy compound. In first approximation I would like to represent a perfect bond, in order to get the stress distribution on the structure without caring about debonding issues.
I've created only one part in Abaqus CAE with three different solid features (selecting "keep internal boundaries" for each solid-extruded) for the deck plating, the adhesive layer and the steel plate, assigning different material properties and meshing them separately.
I used solid homogeneous sections and 3d stress element for the mesh.
I took care to have partitioned the deck plating so that the central surface on which there will be the bonding on, it has meshed in the same way of the layer above.
Are the nodes of the surfaces in contact already shared, being all the structure on the same part? should I define some constraint between the bonded features?I had the warning “There are 3 unconnected regions in the model”, so I've tried with a surface-based tie constraint between the deck and the adhesive and the adhesive and the steel plate.
Then I receive these warnings:
“No constraint is formed for the tied pair (assembly_slave_surf_adhesive, assembly_mast_surf_deck) . All the slave nodes are part of the master surface.”
“No constraint is formed for the tied pair (assembly_slave_surf_steel, assembly_mast_surf-adhes). All the slave nodes are part of the master surface.”
and still the previous one.
many thanks in advance,
Nicole