Verification of the weld joints for different materials

Aim:-Verify the joints for different materials.

Objective:-

Case 1. Stainless Steel:Using Stainless steel for both weldments and plates.

Case 2. Aluminium Alloy:The material to be used for this case is Aluminium alloy(high strength, wrought).

Case 3.Bronze: In order to simulate \"Brazing\", Using bronze as the weld material. And Stainless Steel to both plates and Copper to the \"Ribs\".

Geometry:-

Contact:-

There are two types of contact

First one is bonded between the plate and welding .

Second one is frictional between both plates

Mesh

Applied body sizing of 7mm.

Mesh matrix:

Analysis settings

1)Fixed support :-

All holes in big plate is fixed.

2)Force:

Applied force is of 15000N.

Case 1:- Stainless steel for both weldments and plates.

Material properties of Stainless steel:-

Directional deformation:-

Animation:-https://youtu.be/ITKlwU5NuPY

Equivalent elastic strain:-

Animation:-https://youtu.be/RAAmsSs126c

Equivalent stress:-

Animation:- https://youtu.be/10JcX7usbjg

Case 2:- Stainless steel for plates ,Aluminium alloy for ribs and Aluminium alloy(high strength, wrought) for weldments.

Material properties of Aluminium alloy(high strength, wrought):-

Directional deformation:-

Animation:-https://youtu.be/-bNWyXXr27Y

Equivalent Elastic Strain:-

Animation:- https://youtu.be/_Pjb5JmWqwk

Equivalent Stress :-

Animation:- https://youtu.be/IakAxv7GuCI

Case 3:- Stainless steel for plates ,Copper alloy for ribs and Bronze cast for weldments.

Material properties Bronze cast:

Material properties Copper Alloy:

Directional Deformation:-Animation:-https://youtu.be/MQElu9A2dDs

Equivalent Elastic Strain:-

Animation:-https://youtu.be/rY_WBv7MNA8

Equivalent Stress:-

Animation:-https://youtu.be/pHU1YNdDxKM

Conclusion:-

	Directional deformation	Equivalent strain	Equivalent stress
Max	Min	Max	Min	Max	Min
Case 1	0.35591 mm	-3.0103e-002 mm	1.8739e-003 mm/mm	3.9881e-007 mm/mm	294.3 MPa	1.3418 MPa
Case 2	0.45261 mm	-2.0586e-002 mm	3.4545e-003 mm/mm	5.1441e-007 mm/mm	254.42 MPa	1.4462 MPa
Case 3	0.41084 mm	-2.3653e-002 mm	3.2046e-003 mm/mm	4.6165e-007 mm/mm	255.97 MPa	1.2448 MPa

Directonal Deformation:-Case2>Case3>Case1

Equivalent Strain:-Case2>Case3>Case1

Equivalent Stress:-Case1>Case3>Case2

• Directional deformation in Aluminium Alloy are higher compare to other materials.
• Equivalent stress distribution in weld joints using Stainless Steel is higher compared to other materials,so it can bear more loads than other two materials.
• Equivalent strain in stainless steel is very lower compared to bronze and aluminim,where aluminium have the highest results values and bronze have moderate values.

From all the observations and results i found that max stress will at the weld joints where the load is applied i.e at the joint of small plates and ribs, it is observed as same in all three cases.