{"id":287050,"date":"2023-06-05T06:42:43","date_gmt":"2023-06-05T06:42:43","guid":{"rendered":"\/forum\/?post_type=topic&p=287050"},"modified":"2023-06-05T07:36:57","modified_gmt":"2023-06-05T07:36:57","slug":"tapping-reactions-stresses-for-weld-design","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/tapping-reactions-stresses-for-weld-design\/","title":{"rendered":"Calculating Reactions & Stresses for Weld Design"},"content":{"rendered":"

I have modelled a simple flat plate ( 500mm x 20mm thick) welded on 3 sides ( 1m + 1m+ 0.5m) on a base plate (30mm plate), which is fixed at the 4 edges. I have applied a load of 5.0E5 N (1000N\/mm x 500mm). 
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In order to tap the weld stress or the reaction force, i followed 3 types<\/p>\n

1) Finding Shear Stress in XZ Plane <\/p>\n

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The Shear Stress seems to be nullified and effective shear stress is 0 MPa. Any reason for this behaviour ? I wanted to take this stress and design my weld for lateral shear stress.  How is the Shear Stress Calculated ? I tried capturing nodal force and dividing the shear area to get stress, but value seems to be different than the stress shown below<\/p>\n

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2) Finding Normal Stress in Z Direction<\/p>\n

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How is Normal Stress Calculated at the junction of weld interface. I understand that the front yellow zone is just the load \/ area which comes to 50MPa. But as the welding starts, how are the stresses generally computed ?<\/p>\n

3a) ENFO Vector Command to get the Force <\/p>\n

Trying to directly get the Forces from ENFO Command. I got the below detail. For some reason, 50000N is acting in the reverse direction at two corner nodes and my effective force comes down to 4.5E5 (5.0E5 – 5.0E4). What is the reason for this ?<\/p>\n

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3b) ENMO Vector Command to get the moment – I wanted to know abt the direction of Local Moment what this refers abt ? My Moment means abt XZ Plane ? Although the entire moment is actually close to zero. <\/p>\n

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