My PhD in Mechanical Engineering Dept. of Middle East Technical University, Turkey ended by Dec. 2014. In both M.S. and PhD I studied the numerical analyses of metal forming processes with ABAQUS together with huge experimental works. I have a patented idea in hydroforming of sheet metals in my M.S. and also I have developed a Ductile Fracture Criterion during my PhD which means I have a robust background of computational mechanics.
does anybody have the lecture notes for
I need them so much.
thank you
Hey buddies
I am writing a constitutive relation in vumat for plane stress conditions with S4R elemet in the ABAQUS.
the problem is that the E33 is reported as zero where it is not zero and also the values for S11 and S22 are so large numbers.
ihave tried the code for 3D conditions and it work great with C3D8R element and the results are satisfactory where for the Shell elements by enforcing the S33=0, the E33 gets zero too.
does anybody have any solution?
thanks alot
Hello Everybody
Can anyone help a beginner to learn how to write a Umat/Vumat subroutine in ABAQUS step by step?
Thank you
Hello Everybody
I can not find any theoric formula for ELPD in the ABAQUS theory manual and I need to know if we use eqivalent strees-equivalent strain and integrate to strain of fracture, does it give us plastic dissipation energy of an element?
Integrate[EQStress*d(EQStrain), {0,Fracture Strain}] ?
Thank you all
I need to write a Vumat subroutine in ABAQUS 6.11.1, and I dont know where should I begin from exactly? can anybody help me with the suitable version of Fortran for this version of ABAQUS and the steps I need to take for writing a SUBROUTINE in ABAQUS?
Thank you guys
