My aim is to apply a prescribed pressure and traction to a surface.But in the VDLOAD only the array Value(*) can be written, besides the value is one dimension array.
Then my questions are that how to apply a prescribed pressure to a integration point in the direction which is normal to the surface and how to apply a prescribed traction to a integration point in the dierection which is tangential to the surface.
Thank you very very much!
Dr Liu