Week 3 Verification of Weld Joints

VERIFICATION OF WELD JOINTS

OBJECTIVES

            To Simulate three different types of welding using three different weld materials

Weld Material used:

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".

Run the simulation for a load of 15000N that is to be applied at the rectangular hole in the small plate( Same as in the video). 

For each case, find out the Directional Deformation and equivalent strain experienced by the setup. Identify the weld joint that experiences the highest equivalent stress in each case and compare the results for all three cases

PROCEDURE

• First, we have to input the engineering materials with required properties or else by creating with required properties.

 

• Then we have to import our model into ansys, import the model and open it in space claim so that ansys will read it.

• Then assign required connections in this assignment we will use bonded contact for the weld elements and frictional contact between the plate and ribs.

 

• Then mesh the component with required mesh size in this assignment we will use
  • Mesh     – default
  • Sizing      – 7mm
  • Nodes  – 26031
  • Elements – 4168

• Analysis setting

• fixed support and force act 

 

• Then give the required solution parameters then solve .

CASE1: 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.

Total deformation

Equivalent stress

Equivalent stress of weld

 

Equivalent elastic strain

 

Safety factor

 

Contact pressure

 

CASE2: The material to be chosen for this case is Aluminium alloy(high strength, wrought). [Plate material to be used is stainless steel]

Total deformation

Equivalent stress

Equivalent stress of weld

Equivalent elastic strain

Safety factor

Contact pressure

CASE3: 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".

Total deformation

Equivalent stress

Equivalent stress of weld

Equivalent elastic strain

Safety factor

Contact pressure

 

RESULT

	Total Deformation (mm)	Max Equivalent stress (MPa)	Max Equivalent stress on weld (MPa)	Max Equivalent strain	Max contact pressure (MPa)	safety factor
CASE1	0.35	340.3	302.39	0.00185	40.532	10
CASE2	0.365	344.93	251.71	0.0034	38.722	10
CASE3	0.406	351.18	265.3	0.00332	41.684	10

CONCLUSION

 The alluminium alloy with high strength and wrought choosen as the weld elements because the max stress developed is less than the othe materials and max elastic strain also high when compared with other materials.