I made a simplified, one body model of a frame we need to
build, and I am using CosmosXpress in SW08 to analyze it. I'm
wondering if Xpress is taking into account the weight of the frame
in the analysis. I have material properties assigned and the frame
weighs about 3000 lbs. When I run the analysis, with no loads (1 lb
load), it moves, but very little. When I add a 3000 lb load to the
frame, it moves quite a bit more.
The total load is 6000 lbs (load plus weight of frame), but I am
not sure if I need to run my analysis at 6000 lbs (3k lb load plus
3k lb for the weight of the frame), or at 3k lbs (3k lb load and
the weight of the frame is already incorporated via material
properties. Please help.
The weight is not considered. COSMOSXpress loading is limited to
force and pressure. To approximate the weight, you should add it to
the force. Obviously, this is an approximation as the weight is a
body force (that acts at each particle), while the force (or
pressure) is applied at the boundary face.