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software of interest to mechanicians

Finit element Analysis of mandible bone with implant

Submitted by king_man on

Hi everyone

i work on a bio mechanic project. i am going to simulate a mandible bone
with implant. at first i want to use Materialise Mimics V10 to convert Ct Scan
data of a mandible without implant to a 3D model. i thought i could edit
the exported file on the other software (Ansys or Abaqus) to add the
implant. but, exported file from mimics can not have any edit .Actually
it has not volume and i need to have a 3D solid model. please help me !


Single fiber pull out modelling

Submitted by charls2vimal on

I want to model a fiber rod pull out process in Abaqus. The fiber is a composite rod which is to be debonded first from the surrounding laminate and need to be sliding along the interface of the rod/laminate.

Modelling:

i created an axisymmetric model of the rod being surrounded by the laminate. i got the residual stress due to curing process. This residual stress is compressive at the interface which is responsible for resisting the pull out force applied at first.

loading:

Axial pull is applied at one end of the rod. and the other end being fixed.

Sheet Metal forming simulation (Spinning)

Submitted by svmohammadi on

Hi there

I started to
work with Abaqus and I want to simulate spinning process. In this process I
need to rotate rigid mandrel and holder along with a deformable sheet. Sheet is
held between mandrel and holder in the simulation and they all rotate with the
same rotational speed. I used Abaqus-Explicit to model this process. I faced
several problems which I mention when I use a solid sheet (not shell):

Rayleigh damping and numerical damping. (Ls-Dyna vs Msc.MARC)

Submitted by Italo Persechino on
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Hi to all of you!



I have problems about dampings.



I have used Msc.MARC to simulate a Hopkinson bar experiment. We usually use a

"numerical damping" in these analysis.

As you know, MARC is a implicit FEM and it takes a lot of time to complete each

simulation.

So, I want to use Ls-Dyna, but I have the problem of damping. In Ls-dyna, we use

the Raylegh damping: there are 2 coefficients that multiply the matrix of

stifness and mass.

Is there any relation between these two kinds of dampings?

Fluid Structure Interaction

Submitted by dheelibun on
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hi,

I am doing FSI analysis in Ansys.In that analysis I am using CFX and Transient Structural.In transient Stuructural,i need to apply a point load.so I created a hard point.But while doing meshing with Multizone meshing it shows the following error: "Error:Multizone found free block in swept body".So what can I do?Can anybody help me in this context?

 

Thank you 

Abaqus on Windows 8

Submitted by pramudiyanto on

hi,

I'm a newbie in Abaqus, but I think I have a great passion to explore this software a bit deeper. One problem is coming when I try to install Abaqus 6.11-2 on Windows 8 64bit operating system. It stuck on the pre-installation system check, and when I click on Next, the installation has topped. Has anyone got the same problem like these? Need a little help to solve this problem. Thank you

ABAQUS

Submitted by alexander23 on
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Dear All,

I have problem, If I try to write to the ABAQUS COMMAND:

abaqus job=beam

then ABAQUS COMMNAD respond

input file      :

and I do not know what to do...

I know that it's a simple problem but I need it to solve..

thank you for early response

Best regard

alexander23

 

Simulation of Hail Impact Using the Smoothed Particle Hydrodynamic Method in Abaqus/Explicit

Submitted by SIMULIA on

Ice or hail impact is an important design consideration in the aviation, energy, and astronautics industries.  Physical testing of impact scenarios can be expensive and impractical.  Numerical simulations provide cost effective and convenient tools for including hail impact scenarios in the design process.

Numerically simulating high speed ice or hail impact is challenging because of the extreme deformation, fragmentation, contact, and material model complexity.