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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 

Please help me,

If anyone knows please tell me how to define a compression only nonlinear spring in Abaqus,

I can defined a nonlinear connector, but it should works only in compression. When it relaods or in tension I want it to have zero stiffeness.pl help me with this issue

Webinar

Date: April 24, 2012;  Time: 12:00 - 1:00 pm (EDT)

Dear colleagues,

is there any technique to reduce a computational time in Abaqus/Standard like it can be done in Abaqus/Explicit using an increase of the loading rates and performing mass scaling???

Thank you in advance!

Best regards,

mlx22 

Good day to everyone....

Im new in the abaqus user... im here got some problem in my beginner stage:

 (i) what the units used in the abaqus? how can i ckeck it? 

(ii) what is means of the approximate size?

(iii) we can put the vertical load and horizontal load, but how i can put the load with the angle such as (10kN in 30^o) 

(iv) how can i do if i want do the looping in my analysis, such as:

Hi,

For a movement of a continuum, what does a negative jacobian (determinant of deformation gradient) mean?

i have specific heat and latent heat data of a material

how can i model material with enthalpy in ansys?

meanwhile  i dont have the temperature which enthalpy is zero

Hellow

please help me to mesh the bead on the plate type of weld model.