Week 3 Verification of Weld Joints

Aim-Simulating the weld joints for the three diffderent materials.

Objective-we apply the material to the weldments and to the plates and to the ribs andwe observe what would be deformatiomn.equivalent stress and the factor of saftey and we choose which material is best.

Procedure-

1.We select the structural analysis from the ansys Gui and we add maerial as stainless steel for plate ,ribs and for the weldments.

2.We rename the plates as small plate,big plate,ribs1 and the rib2 .

3.we will rename the contacts based on the defnition and the we apply the frictional contact beween the plates and the ribs awith friction coffecient of 0.2

4.We will mesh the small plate and big plate by selecting the face with element size of 7mm.

5.In the analysis setting we give time set up as 1 and we on the large deflection .

6.we apply the fixed support to the holes which are on the bigplate and we apply the load of 15000N thqat is on the small plate in the negative y direction.

fig-Equivalent stress foer stainless steel

Fig - Saftey of factor for stainless sttel

Fig- Pressure contact for stainless steel

Fig- Deformation for stainless steel

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]

Fig-Equivalent streess for allunium aaloy

fig- Equoivalent strain For allunium aaloy

FActor of safety for alluniumum alloy

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".

Material	Equinalent stress	FActor of saftey(yield stress/max stress(allowable stress))	Equivalent strain
Stainless steel	139.33	(250/139.33)=1.79430	2.2356e-5
allumnium alloy for weldments	115.08	(363/115.08)=3.154	2.2624e-5
Bronxe for the weld ments and copper for the ribs	127.75	(144/127.75)=1.1272	2.873e-4

From above table we can observe that safety of factor is more than 1 for all material hence they all are safe but factor of safety fgor the allumnium alloy is more hence its best matrial for design and euivalent dstrain for the bronzre is morew than the other materials at the ribs.