Week 3 Verification of Weld Joints

ANSYS WEEK 3: VERIFICATION OF WELD JOINTS

AIM:
To verify the load on the weld joints with three different materials.

OBJECTIVE:
A bracket is given with ribs for support and welded with joints, those need to be
simulated in the Ansys workbench with three different materials and a load of
15000 N.

Case 1: Stainless Steel: In this case, the material of the plates must also be the
same. Use Stainless steel for both weldments and plates. No need to add flux to
the weldments.

Case 2: Aluminium Alloy: The material to be chosen for this case is Aluminium
alloy(high strength, wrought). [Plate material to be used is stainless steel]

Case 3: Bronze: In order to simulate "Brazing", you should be using bronze as the
weld material. Assign Stainless Steel to both plates and Copper to the "Ribs".

PROCEDURE

SETUP
Properties
The proprieties are added to the engineering data (library).
Stainless steel

Fig 2:
Properties of stainless steel

Aluminum Alloy

Fig 3:
Properties of Aluminum Alloy

Bronze

Fig 4:
Properties of Bronze

Copper

Fig 5: Properties of copper

Geometry
Import the geometry in the SpaceClaim to check improper surface or damage
surface, if there any irregularities in the geometry.

Fig 6:
Geometry of weld joint

After opening the geometry in the mechanical, the name is assigned for plates and
the ribs.

Fig 7: Rename the geometry parts
Contacts
The materials are assigned as per case and the results are evaluated. Further, the
contact is renamed based on the definition to visualize the parts and the names
and their connection. Also, the type is given the frictional with friction coefficient
0.2.

Fig 8: Contacts

Mesh
The default mesh is deployed on the weld joint but to obtain accurate results on
the force applied to the big plate and small plate, the sizing gives with size 5mm as
refining the mesh.

Analysis setting

In the Analysis setting, the large deflection is ON, to capture the non-linearities in
the result. For the simulation process, few steps are followed the big plate is
provided with fixed support, and the small plate is applied with the force of 15000
N in the Y-axis direction.

Loading conditions - static structural 

Results

To evaluate the result
1) Equivalent von misses stress.
2) Direction deformation.
3) Equivalent von misses stress 2 on the welds.
4) Equivalent Elastic strain.

1) Equivalent von misses stress.

2) Direction deformation.

3) Equivalent von misses stress 2 on the welds.

4) Equivalent Elastic strain.

5. Stress in Ribs

6. contact status

7. contact pressure

Result comparison on all the cases for Equivalent elastic strain