Verification of Welds

OBJECTIVE- To perform structural analysis of weld joints for three different case setups and compare the directional deformation, equivalent stress and equivalent strain.

CASE 1- Stainless Steel: The material of the plates and welds is taken as Stainless Steel.

CASE 2 -Aluminium Alloy

CASE 3 -Bronze

PROCEDURE

Geometry Setup : Update the model to Workbench.

-Update the Name of plates and ribs

Contacts- Under the connections create contact between weld and plates, parallely create another contact between big plate, small plate and ribs.

Mesh- Mesh the big and small plates with mesh size of 7mm.

Support - All the Holes are fixed

Load- A load of 15000N is applied at central hole vertically downwards.

RESULTS:

CASE1 - STAINLESS STEEL

EQUIVALENT STRESS - 272.46 MPA

DIRECTIONAL DEFORMATION (Y)- 0.275 MM

EQUIVALENT STRAIN -0.00149

EQUIVALENT WELD STRESS-

CASE 2 - ALUMINIUM ALLOY

EQUIVALENT STRESS- 276.33 MPA

DIRECTIONAL DEFORMATION (Y) -0.2797 MM

EQUIVALENT STRAIN -0.00292

EQUIVALNET STRESS IN WELD -

CASE3- BRONZE

EQUIVALENT STRESS- 280.42 MPA

DIRECTIONAL DEFORMATION -0.308 MM

EQUIVALENT STRAIN-

EQUIVALENT STRESS IN WELD-

COMPARISON-

- Since Strain is inversely proportional to Youngs Modulus, here aluminium having lowest youngs modulus have highest strain.

- Yield Strength is stress at which material starts to deform, thus Yield Strength of Stainless Steel being higher than other materials, it has highest equivalent stress in welds at 253.38 MPa.