Has anyone used the THERMOD program from NIAR's Website? Reviews and/or comments? We are thinking of using it as a trial run...and would like some unofficial comments. Since it is essentially "use at your own peril", we are seeking some advice...
I have an assembly that I set "Global Contact", and have produced results that are marginally what I expected. Does anyone have any experience with the accuracy of Cosmos contact elements? I am used to NE/Nastran, and know the difficulty of assessing the actual phenomena when using this approach.
My company has a hydraulic dampener for landing gear that uses a bleed hole in the cam. I need to evaluate how much actual pressure is formed within the chamber where the fluid is bleeding out of at impact loading. Does anyone have a good reference for this kind of analysis?
Hello All-
I have a huge file that has an excess of 220,000 nodes (200,000 elements), and each time I run the analysis, I get the Fatal Error S1110, which states the following solution options:
Increase your virtual memory setting (see virtual memory in Windows Help). If this does not...
Anybody have general information on bearing allowables for graphite/ epoxy laminate with 60% uni-directional fibers and 40% +-45 fibers? I generally use half of the compressive strength, approximately 60 ksi, but I would like some good documentation.
Does anyone know how to allow the stresses to change with the part in animation mode in FEMAP post-processing? This would help demonstrate where the peak values are (compression, tension, etc.).
Any help on determining the tensile and shear allowables for a sandwich core? I am using a sandwich core that consists of carbon plies for the skin and Rohacell W70 as the core. The part is in direct shear and torsion. I have the part analyzed on FEA Nastran, and am trying to determine the...
Does anyone know how to reconcile the units on density when using FEMAP and using lbf, inches, secs as the base units (this allows for psi to be inputed for stresses)? The Nastran Techs say to divide by the density, which is in units of lbf/in^3 by 386.4 (converting ft and gravity), yet when I...
My company has recently wanted to employ HyBor laminate (Boron/Epoxy) in an aircraft application. I have heard that there is significant handling concerns regarding the material. Has anyone used this particular material, and are there any issues that I should be aware of as I implement the...
When integrating a meshed model with another meshed model in FEMAP, does anyone know how to effectively renumber one of the models so that the element numbers don't overlap? I am particularly referring to laminate elements, but I think the general rule of how to do it should apply to any kind...
Does a negative eigenvalue in linear buckling with a magnitude greater than one signify that the direction of the load produces such a safety factor? Or does it mean that the matrix solver could not converge? Help please.
