Opening for a Sr CFD/FEA Modeling Engineer at Medtronic
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Requisition ID:95396
Experience with phase-chase modeling or FSI is a plus.
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ABAQUS
Open Pit Model Abaqus
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Hi guys,
Inconsistencies in Abaqus material
Hello,
i wonder, how the inconsistencies in anisotropic hyperelastic material of Holzapfel-Gasser-Ogden form caused by Macauley-brackets and Heaviside step-function are beeing solved inside Abaqus (cf. Analysis User's Manual 22.5.3).
The Heaviside H(x) is beeing used to allow fiber reinforcement only on extension (in fiber direction). But analytical derivatives of the Macauley-bracket yield terms with H(x), and the Dirac-delta (infinite impulse at x_0).
Incompressibility in hyperelastic ABAQUS-Subroutine
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Hello everybody,
in hyperelastic material models incompressibility is normally realised through Lagrange multipliers. But i can't find any instruction, whether i have to code that multiplier in a routine e.g. of type UHYPER, UANISOHYPER_INV or UANISOHYPER_STRAIN! The only instruction is on incompressibility (and hybrid element) flags, that have to be set, cf. Abaqus User Subroutines Reference Manual 1.1.20, 21 and 37.
Properties Lamina/Composite-Composite Layup using Abaqus
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Hey everybody,
Actually I don't have the same thickness everywhere(that decreases little by little). I tried to part but it's not exactly the same thickness in the same part. Do you know if that can cause a problem? For example I have a scrap like that 10 mm+-2mm for thickness. I would think to fill in the composite layup like that Ply1 : 2 mm-Core : 6 mm-Ply2 : 2 mm
I use this occasion to ask you two more questions :
ABAQUS model for viscoelastic peel dynamics
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Hi All,
making a cluster out of 6 computers for abaqus analysis
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Hi everybody,
I have 6 desktop computers with the following specifications (all of them are the same):
CPU: 2 GHz, 2 cores, 8 Hyper Threading
RAM: 12 Gb
HDD: 500 Gb
Windows 7 (which I need to change to Windows Server with HPC pack)
I need to connect them together and make a cluster for abaqus analysis. I'm thinking about using Microsoft HPC pack since it seems to be an easy and user friendly option (I don't have any experience in that area).
ABAQUS Element Connectivity
Hi,
I am trying to mesh the hollow sphere attachged using structured BRICK-8 elements. It turns out in order to have a structured mesh, I have to have 2 partitions such that four quadrants be generated.
What I only need from ABAQUS is the element connectivity. I do not need to solve any problem.
Export Mass Matrices in Abaqus
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Hello,
I have to export stiffness and mass matrices from Abaqus (dynamical simulation)
and I have been using the commands *Matrix Generate and *Matrix Output
I need to export the matrices for different instants of time (time intervals) and I have noticed that the entries
of the MASS matrices are not equal at different time points.
ABAQUS ALE gives random solution
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Hi all,
I am simulating an excavation problem using the ALE method. If I rerun exactly the same input file only changing the duration of the last (long) step and compare results of the two analyses at the same analysis time I get significantly different results (e.g. up to 20% different settlements). I have tried changing the last step duration and I get different results again. How can this be? I am really worried about this behaviour!
Regards