Hi Everyone:
I'm planning on doing a relatively basic stress analysis on some structural components. These components are going to be quickly used for both experiments and demonstration under heavy loading and impact conditions, so accuracy is very important.
One region in the structure...
Hi all:
I have a question regarding the use of FEA Software to determine damping coefficients. Basically, I want to find the damping of a skid landing gear via FEA Software, or any other readily available computational tool. I'm aware that the only physical way to determine damping would be...
Hi everyone:
I have a question regarding the use of ABAQUS to determine damping coefficients. Basically, I want to find the damping of a skid landing gear via ABAQUS. I'm aware that the only physical way to determine damping would be through an actual experiment.
However, for a given CAD...
I really appreciate all the responses here. Thank you.
I do not know if this will influence the discussion at all but here is some more info:
1) The PhD would be funded
2) I am a US citizen
3) The University is well regarded in Aero Engineering (Purdue)
Hi Everyone:
I am an aerospace engineering student at a top engineering university, getting a Masters degree. I was offered to stick around for a PhD, since my funding was extended. However, I'm wondering if there is an practical benefits in spending an extra 3-4 years getting a PhD, as...
Got it. Thanks IceBreakerSour!
Does anyone know if there is a way to do this without going into subroutine/FORTRAN stuff?? I would rather not go thru the trouble of linking a FORTRAN compiler with ABAQUS (I have no Idea how). I would really like to do this without a subroutine, but I think...
Hi everyone
I have a load where both the amplitude and position change with respect to time. How do I create this load on ABAQUS, without using a subroutine. I know how to have time-varying amplitude of a load, but I do not know how to create time-varying position.
For example (this is not...
Hello
A weird problem has emerged in my model. In short, my model consists of essentially 2 hollow bars (composed of shell elements) falling to the ground. The simulation behaves as expected, until I changed the material damping.
I decided to change the material damping (specifically alpha...
Hi Everyone
I have an FEA model of rigid robotic legs impacting the ground. These legs are carrying a large weight (defined in a point node attached to the legs) and they impact the ground at a large velocity. I want to obtain a plot of the acceleration of selected points during this impact...
Hi,
I am writing parametric studies for some abaqus designs via python. Most of this has went pretty smoothly but I have reached a frustrating problem for selecting edges (from python) for a particular structure as the geometry changes. I typically use the findAt() commands and write basic...
I currently use ABAQUS 6.9. I really like the idea of the A.T.O.M. feature (Abaqus Topology Optimization Module). Does ATOM come with Abaqus 6.12, or is it an 'add-on'? Has anyone used this feature?
Thanks
IceBreakerSours, thanks for the suggestion. Would explicit analysis work better for this type of dilemma? Also how does mass scaling effect the accuracy of the results? I am only concerned about the stress distribution, not the dynamic properties.
Again, it is very important that I find a...
Hello,
So I am running a dynamic implicit analysis. The time dependent loads are defined by a tabular amplitude. My typical procedure is:
I receive data for a time-dependent load
I input that as a tabular amplitude
I run a several dynamic implicit simulations for several different sets of...
Hello Everyone. I have been trying to evaluate a simple job but to my dismay I receive the following error message:
Normal cannot be computed in 2 elements. The nodal coordinates may be incorrect or the element aspect ratio may exceed 1000 to 1. The elements have been identified in element...
Hello Everyone
I know this is a common problem in ABAQUS (or at least it is for me). I'm trying to run an impact simulation of a basic bumper impacting a discrete rigid barrier. Clearly this is a dynamic model with surface-to-surface contact interaction. To avoid convergence problems, I...
I am planning to simulate the crashworthiness of various landing gear designs for an aircraft and I have many questions regarding the process to evaluate crashworthiness. In summary, I want to compare the performance of a couple landing gear designs with respect to crashworthiness.
Questions...
Thanks for the helpful reply. I appreciate it.
So what I ended up doing was to import the part and create the model in CAE, in which I assign many different surfaces on the body. The corresponding python code for this basically shows that a .igs part is imported into ABAQUS and then defines...
