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Meshing a block with spherical void inside in Ansys

Submitted by sidd04mech on
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ansys
meshing

I have a squre block and inside it there is an sphere. I want to mesh
the whole assembly. I can mesh the sphere but when i try to mesh the
squre block with the spherical hole it cant mesh and says "it cant
select the source and target face". I also tried to devide it into 8
parts. That helped me to mesh the sphere but i cant mesh the squre with
spherical hole with that too. So please anyone can help me out.

Workshop & trip to Ferrari MilleChili lab and Galleria Ferrari with 50 students from Politecnico di Bari

Submitted by Mike Ciavarella on
education
mechanics
FEM
Workshop
Optimization
visit
ferrari millechili lab
excellence
sport cars

 

 

On friday we had a wonderful trip to Modena, at the University of Modena's Millechili
Lab with which I collaborate also for the MilleChili journal Millechili Journal -- weight reduction in vehicle design.
In collaboration with Ferrari SpA project.

Spectacular torsional-flexural autovibrations of a Volga bridge

Submitted by gregk on
video
Video
autovibrations
bridge

The autovibrations of the bridge over Volga river in the city of Volgograd(Russia) were filmed (not by me) today on 05/21/2010. The amplitude reachedabout 1 m. The bridge opening was just six months ago...

Apparently, either the bridge frame drag was too high or torsional stiffness / damping too low.

 

Postdoctoral Position in Run-out Table Heat Transfer Studies at the University of British Columbia

Submitted by amirnobari on
job

 The Centre for Metallurgical Process Engineering at the University of British Columbia (UBC) is recruiting qualified applicants for the position of Postdoctoral Fellow. This is a unique position in industrially oriented research on heat transfer studies during run-out table cooling of advanced high strength steels. In detail, the work will involve the development of a run-out table cooling model based on analyzing results obtained from heat transfer studies using the unique pilot scale run-out table located in the Advanced Materials and Process Engineering Laboratory (AMPEL) in UBC.

Hyperelastic+ Damage with UMAT - Abaqus/Standard

Submitted by Ahmetoglu on

 Hello,

 

 I have the following problem:

I want to implement a hyperelastic material model with a damage function (like the pseudo-elasticity of Ogden) by using a UMAT in Abaqus/Standard.

For this, in the first step I try to implement the damage of Ogden, which already exist in Abaqus/Standard.

But I don't know in which way I build the tangent stiffness matrix for this case (nonlinear and dependent of the history)

Do anywhere know a good literature in order to read and understand this issue?

Monte Carlo Simulation

Submitted by George Papazaf… on
Forums
Ask iMechanica

Hello everyone,

I am new to probabilistic assessment methods of structures of various kinds, and I have encountered a paper which includes results of "Monte Carlo Simulation" and also fragility curves. Could someone please recommend to me some books, papers, or even links and sites from where I can learn more about this probabilistic method and for the derivation of fragility curves? My email is gpapazafeiropoulos [at] yahoo.gr (gpapazafeiropoulos[at]yahoo[dot]gr).

Displacement Controlled Geometric Nonlinear FEM

Submitted by vasudeo on
education
Geometric Nonlinear FEM
Hi I am working on numerical simulation of petroleum pipeline subjected to
seismic hazards. I have developed Geo-Nonlinear FEM code for load
controlled which i have compered with Ansys and it is working fine.
now i would like to apply fault  displacement for this i need to
convert my code to displacement controlled using penalty approach
but it is not converging. i will be very happy if any one can suggest
how i can over come this problem or plz sugest me some book or papre. here I am using Newton-Raphson method 
 

3D Doctor Tool

Submitted by prabhjot.juneja on
research
FEM
DICOM

Hi,

 

I hope this is the right forum to get some help for my work. 

I am looking at CT data (DICOM files) to make FEM models. To generate 3D surface/volumes for FEM, I was looking for softwares. They all are pretty expensive (4-10K USD). I have decide togo with Able Software's 3D-DOCTOR. I am lookign for some reviews or user experience or comments for this tool.

 

Thanks

Prab

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