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Hi everyone,

I just realized there is a DEM feature built in ABAQUS. A drum mixer example is given in user manual. but i still cannot figure out how to do it like how to creating a number of discrete elements, defining their locations, and so on. 
Could anyone offer me any tips, or any tutorials which can be hardly found online

Thanks in advance.

Dear Colleagues, 

We are inviting you to submit abstracts on ASME McMAT 2015: Symposium 10:

Fundamental Biomechanics and Biomaterials Invention for Translational Medicine.

Applications are invited for a 2 year Postdoctoral Fellow in Dr. Andrew Bunger's group at the University of Pittsburgh Department of Civil and Environmental Engineering. The group conducts research in geomechanics with an emphasis on mechanics of hydraulic fractures and poromechanics of rocks.

Good aftrnoon to all,

i am new to ansys apdl,so kindly help me with this problem.

i am running linera static analysis for landing skid skid of helicopter but on solving i m getting error like a small negative equation solver pivot term has been encountered at UX degree of freedom.

what is the meaning of this error & how to tackle this?

Regards,

Sushant Zutshi

The Department of Aerospace Engineering at the Indian Institute of Technology, Madras is seeking to fill Assistant Professor vacancies in the following research areas.

1) Experimental Structural Mechanics/ Composites
2) Aircraft Aerodynamics (experimentalists preferred)
3) Control and Flight Mechanics of Aerospace vehicles
4) Aircraft Design (aerodynamic/structural)

Apply online at www.iitm.ac.in by 27th March, 2015.

Hi everyone,

I'm using UEL in ABAQUS. My model just has one 4-node element (defined in UEL) fixed in one end. When I'm running the UEL, it's working without any problm. But when I' trying to print out the global stiffness matrix I'm getting this error: "aborted with system error code 1073740940".

This is the way that I'm trying to print it out:

*STEP, NAME=STEP-1
*MATRIX GENERATE, STIFFNESS
*MATRIX OUTPUT, STIFFNESS
*END STEP

Would you please let me know what's the problem and how I can fix it?

Regards,

I was trying to create a load curve associated with time, such as a sine curve at the beginning, and then the force vanishes. Therefore, I cannot just use the periodic curve directly. I tried to input two loads periodic sine curves(same step) so that at a later time like t_0 the total load is cancelled. But it seems the displacement reaction is kind of weird. Is this the right way to do this kind of load-time curve, or is there another better way? Thanks a lot.

Blueze

Hi everyone,

I was trying to export a deformed geometry from ABAQUS. So, I chose a method found online which is using CAE to import the ODB file, i.e. File -- Import -- Part -- File Filter -- Output Database option and specify the deformed shape and then save it as an input file. 

However, what I got by importing the ODB is different with that shown in the simulation result. Could anyone tell me why is that? And How could I get a correct deformed geometry.  

cheers

Vincent

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.