hi all,

some how i was able to make a model by importing data in pro/e and then in abaqus.

i have a problem now that I have to take out TRESCA value and max and Min priciple stresses, for all nodes.

i was able to extract coordinates by my programm but when i substitutes "S.Tresca" for COORD in the program, it doesnt work.

there has been a question that stresses are only at elements but , i think abaqus by itself extrapolates by shape functions,to the nodes, and gives value, because that is possible in post processing by abaqus, but when i write in program it doesnt work.

please help soon as I have to do it till the end of january.

i am including the program in here.

hey guys please help me, 

 i need to define my revolution points i.e. the circle by x.y.z. coordinates and i dont know how to do that.

 if that is not possible please tell me how can i change the system to cyclindrical coordinates please.

 i
have to draw a spring and for that i know the points in cylindrical
system. i cant define in 2d as for less than 90 degree it will not be in
xz or you know like that plane. it will also be helful to define plane
if i can.

like how it chooses f1[1] sketch plane and all, and can i change that by changing coordinates how please help.

please tell me the errors in this programme please