i am trying to model the stress variation in underground pipeline under traffic loading .i am trying to define the self weight of body so when i used the body force the result is different and when i used the gravity the Answer is different .Actually i have read somewhere that these both forces (gravity , body force) in abaqus is same .Can u please tell me what is the iisue
Look at this, it may be helpful. good luck.
http://abaqus-users.1086179.n5.nabble.com/Weight-Force-Acceleration-Forces-Loads-td14932.html
Well, gravity is an inherent acceleration, so the resulting force will depend on the density/mass, whereas a force is defined by the user.
Rene Christensen.
First of all Thanks alot for you Answers .But there is a problem if i used same value for both then the resulting stress on the body is greater for gravity than body force as in abaqus you only enter Gravitational acceleration and the abaqus itself multiply with Density and volume etc to get a larger number and then apply load on the body and body force is just a value which i enter...so according to your answer the stress should be greater for gravity than body force but in abaqus the stress due to body force is greater than gravity force .i don't know why
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