How can we derive dynamic beam equation from navier equation in elastodynamic? I tried with the displacement vector field:
u=-z*w(x,t)
v=0
w=w(x.t)
and put it in navier equation, but it does not work.
Hi all,
I am trying to run a VUMAT subroutine for isotropic hardeining, whenever I input the command "abaqus j=inp_name user=subroutine_name " the analysis begins, the ODB file is generated but in few secs the analysis exits with an error, and the error is..
Abaqus Error: The executable C:\ABAQUS\6.7-1\exec\explicit.exe
aborted with system error code 5.
It also says...
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Hi, I am wondering if anyone can give me suggestion on the following problem.
I would like to do Frequency response study on a viscoelastic material. The frequency response computation usually takes a modal damping ratio. However the viscoelatic material is defined by K (elastic bulk modulus), G0 (short-time shear modulus), Gi (long-time shear modulus) and Beta (decay constant).
Is there a way to find the modal damping ratio from the time domain viscoelastic material parameters (K, G0, Gi and Beta)? E.g. in a FEM environment?
Thanks.
Hi all ... i have been doing element deletion extensively in my analysis but was wondering ... wat are the Pros and Cons of using this method. To my knowledge was wondering how the deleted mass and energy are conserved through out the analysis. Thank you all.
Hi,
Is it possible to use 2-D finite elements capable of accurately predicting all stresses (three dimensional stress state) for 3-D crack growth simulation?
Subramanian
Dear all
I am searching for procedure to calculate stress intensity factor of bonded repair of cracked plate, so any one has any idea how to calculate stress intensity factor in 3D crack model By ANSYS, please guide me. I need your help.
Looking for your help.
Please share your valuable documents at:-
himanshu [at] iitp.ac.in
hpiitp [at] gmail.com
Hi every one
I' m a PhD student from Iran and I like joining a Damage Mechanics Research Group for my thesis. Does any body have a good opprtunity for me?
Regards
hi all,
i want to perform dynamic analysis of a tank filled with fluid. I was trying to model this in ANSYS with FLUID80 element for fluid and shell element for the shell. But due to complexity, i was forced to used degenerated solid element, which FLUID80 does not allow.
please tell me any other way to model it.
