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Turbine and Compressor Design: Online Training Schedule for July-December 2010

Fri, 2010-05-28 10:29 - Helen_SoftInWay
education
turbine
engineer
turbomachinery
compressor
online training

SoftInWay Inc. continues the online training series on turbomachinery design and announces the schedule for the second part of 2010:

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Mike Ciavarella's picture

Neet generation, generation not-not, generacion ni-ni, many terms one meaning!

Wed, 2010-05-26 14:31 - Mike Ciavarella
education
young generation

 

I think I have spoken various times of this problem.

In Italy there was today an announcement that we have the biggest such problem in Europe.  See here .

When I search in wikipedia, I find various terms.

NEET in Uk, Japan, China, South Korea

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voloacastefan's picture

Need help in resolving an ABAQUS error about degrees of freedom of a temp-disp process

Wed, 2010-05-26 12:00 - voloacastefan
Forums: 
Ask iMechanica
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education
Free Tags: 
ABAQUS
temperature
dynamic friction

ABAQUS - DEGREE OF FREEDOM 11 AND AT LEAST ONE OF DEGREES OF FREEDOM 1 THRU 6 MUST BE ACTIVE IN THE MODEL FOR *COUPLED TEMP-DISP. CHECK THE PROCEDURE AND ELEMENT TYPES USED IN THIS MODEL.  

Hi,

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Strain vs displacement

Tue, 2010-05-25 10:19 - othman
education

Hi,

in a clamped bar at one end submitted to tension at the other end, the deformation, as well as stress, is constant while the displacement is linear.So, at the clamped end displacement is null wheras deformation is constant! could anyone explain me this paradoxe?

Thanks a lot. 

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ducbro's picture

fracture energy for hashin damage evolution using Abaqus

Sun, 2010-05-23 10:06 - ducbro
education

hi everyone,

i'm modelling the impact on the composite carbon/epoxy using Abaqus 6.9.

i have the questions:

when i use damage evolution for hashin damage criteria,  i need the values of the fracture energy: longitudinal tensile fracture energy, longitudinal compressive frecture energy, transverse tensile fracture energy, transverse compressive fracture energy. i'm suggested to use the values as 12500, 12500,2500,2500. Are these correct? i dont know how to evaluate these values. Is there any suggestions?

wait for reponse.

regard :d

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AUTODYN Tutorial

Fri, 2010-05-21 09:12 - bdmmech
education
Ansys AUTODYN Tutorial

Hi Members!!!!

Anybody is having AUTODYN tutorial?

Please share !!!!

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3D Doctor Tool

Wed, 2010-05-19 08:56 - prabhjot.juneja
Forums: 
Biomechanics Forum
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education
Free Tags: 
DICOM
3D Doctor

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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How to mesh squre block with a spherical particle inside

Tue, 2010-05-18 15:32 - sidd04mech
education
FEM
ansys
mesh

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.

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Displacement Controlled Geometric Nonlinear FEM

Tue, 2010-05-18 10:25 - vasudeo
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 

 

thanking you

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Mike Ciavarella's picture

Some example videos of my new YouTube channel course "Mechanics of Materials" (italian)

Fri, 2010-05-14 17:57 - Mike Ciavarella
education
youtube
mechanics of materials
Innovation
online course

Given the success of my facebook course Mechanics of Materials MMCM see here, we had so many videos and photos, that I suggested the students to create a Youtube channel.   Here it is, with many videos based on powerpoint presentations I had from my course, and that of collegues in Torino (Masssimo Rossetto), or some conferences presentations, which the students transformed into videos.  Thanks in particular to Mariella Greco, and Simone Legari.

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Amit Pandey's picture

Bilayer beam Bending

Thu, 2010-05-13 12:28 - Amit Pandey
education
cantilever beam

Where to get information on the Mechanics of Bilayer Beam bending for  Bridge & Cantilever beam?

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fem code for plasticity theory?

Tue, 2010-05-11 23:18 - xiashengxu
education

Is there any available fem source code for plasticity theory?

 Thanks alot!

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Zhigang Suo's picture

Lectures on Soft Active Materials, 3rd edition

Sun, 2010-05-09 14:02 - Zhigang Suo
education
suo group research
slides
soft active materials

At the invitation of Yonggang Huang, I’ll give 4-hour lectures at the NSF Summer Institute Course on the Mechanics of Soft Materials.   I attach the slides of the lectures, to be given on Monday, 10 May 2010.  An abstract of the lectures follows.

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Calculate bimaterial H-matrix for orthotropic material.

Sun, 2010-05-02 11:42 - BrianBak
Forums: 
Ask iMechanica
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education

Hi

I have a question regarding calculating the B-matrix which is used to create the bimaterial H-matrix in the article: "Singularities, Interfaces and Cracks in Dissimilar Anisotropic Media" by Zhigang Suo, 1989. 

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Mike Ciavarella's picture

The shape of the Eiffel Tower

Fri, 2010-04-30 19:27 - Mike Ciavarella
education
optimal design
eiffel tower
shape

I've got interested, since I am going with about 10 of my students to Paris for the Euromech conference I am coorganizing in July, by the design of the Eiffel Tower.  Eiffel was a great engineer, and indeed his shape of the tower apparently comes from his ingenious idea of  balancing weigth and wind pressure so that there is little need of foundations.  WIKIPEDIA has an account of this design idea, and the resulting integro-differential equation.

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Running user defined subrutine in Abaqus 6.7-1

Wed, 2010-04-28 14:33 - shapoor
education

 

when I try to run my subrutine in Abaqus I encountered with an error message: ABAQUS ERROR:
Unable to create a temporary directory" C:\program files\intel\..." to be used for scratch files,how can I solve it? please help.

 

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Ravi-Chandar's picture

Travel Support for US Participants to the Summer School on Fracture 2010

Tue, 2010-04-27 16:54 - Ravi-Chandar
education

A Summer School on Fracture will be held at the Institue d’Etudes Scientifiques de Cargèse, during June 7 – 19, 2010. You can find detailed information about the school, the topics covered, lecturers, accommodation, travel, etc at the following websites: http://www.ae.utexas.edu/SummerSchoolFracture/, http://www.iesc.univ-corse.fr/spip.php?rubrique143/

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Discrepancy in radial displacement governing eq for a sphere from Dr. Allen Bower's text in section 4.1.3

Sun, 2010-04-25 20:07 - tsunamiBTP
education

Attached is a pdf file indicating a discrepancy in the governing eq for radial displacements in a sphere.  I am + Dr. Bower's text is correct but I cannot reconcile my derivation with his so I am assuming there must be some underlying assumption or approximation I am not aware of.

 Can anyone provide me with greater insight?

my email: jberg3@unl.edu

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Writing User Routine in DEFORM 3D

Thu, 2010-04-22 05:54 - ashwin.devotta
education
DEFORM 3D
Coolant Pressure
Chip formation

Hi all,

I am new to DEFORM 3D and I am intended to simulate the effect of coolant pressure on the chip formation in metal cutting.

I dont know how to incorporate the mechanical effect of coolant pressure on chip formation in machining.

Are there any standard options in DEFORM 3D, which I can use to simulate the same?.

If not, will writing a user subroutine in DEFORM help me to simulate the same?. If the user subroutine, is the only way to do so, I would like to get some material on writing user subroutine in DEFORM 3D?.

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SivaSrinivasKolukula's picture

Bilinearform of Matrix........

Thu, 2010-04-22 04:14 - SivaSrinivasKolukula
Forums: 
Computational Mechanics Forum
Choose a channel featured in the header of iMechanica: 
education

Hi.......

             I wanted to know in which contexts we take bilinearform of a Matix. What is the application of the bilinear form associated with a stiffness matrix? I need a simple reference for this. Any explanation please .........

Thanks in advance.......

Srinivas

 

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Twebb83's picture

Free Webinar - April 27 - Evolve Linear Dynamics Methods with Abaqus FEA

Wed, 2010-04-21 12:40 - Twebb83
education
noise and vibration
nastran
webinar
Abaqus FEA
Linear Dynamics
Nonlinear Dyanmics

Register to attend this free webinar:
Tuesday, April 27 - 11 a.m - 12 p.m. EDT

Learn how to evolve linear dynamics methods using the accurate, realistic
simulation technology of Abaqus FEA.

>> Register today for this free webinar
http://www.simulia.com/events/webinar_adv_noisevib_aeo_oe.html

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