hello everybody;

i'm doing finite element modal analysis of composite structure using ANSYS v11. however i got problem with modeling  composite laminates. i hope someone can show an example on how to model the composite laminates. i had looking for the related tutorial but couldn't found one.

Fred

Dear Colleagues.

Let us introduce you some new application examples of IOSO optimization technology employment in turbomachinery.

First example is the application of IOSO software connected with Concepts NREC software aimed at improving efficiency of 10-stages compressor, you can download it from here

Hello everyone:

 recently i encountered a problem when using abaqus .i wanna define shear distributed load along a surface,

the magnitude of a single point is related with  its velocity.but it looks that abaqus does not support this kind

of load even in VDOLAD .how can i do to realize it?

thks a lot .

PRESS RELEASE 

Russian Sigma Technologycollaborates with XCENGINEERING of Italy

Dear Colleagues,

As a regular remark, we would like to give you a brief explanation of our approach to Design Optimization.

Dear all,

I' m trying to make a model in VUMAT for shape memory alloy based on Lagoudas 's thermomechanical constitutive model. It seems that It's necessary an iteration to evaluate the thermoelastic prediction.

My questions are : is it possible to use an iterative loop in the VUMAT or it's better to avoid it??Could someone suggest me a different way so that I can avoid the iterative loop?

Many thanks,

Cece

Dear Colleagues,

We would like to offer you some third-perty references to IOSO optimization technology from well-known scientists in this area

HELLO SIR!

                 i have modelled MODEIII case in FRACTURE MECHANICS  IN abaqus

 .

PLEASE TELL ME PINNED BOUNDARY CONDITIONS AT WHICH EDGE/FACE WILL BE APPLIED IF I MODEL FULL MODEL FOR OUT OF PLANE SHEAR LOADING,i.e, MODEIIII case

Hi, everyone:

I am trying to use CFD to simulate a lifted free jet with/without combustion to air atmosphere.I am using Fluent6.3 to find its velocity,pressure and temperature distribution in the air.

My settings of model are:

1.Time : Steady      2.Viscous:Realizable k-epsilon turbulence model      3. Combustion: non-premixed model     4. gravity is included                                    5. material: methane  6. density: ideal gas 

Hi, everyone:

I am trying to use CFD to simulate a lifted free jet with/without combustion to air atmosphere.I am using Fluent6.3 to find its velocity,pressure and temperature distribution in the air.

My settings of model are:

1.Time : Steady      2.Viscous:Realizable k-epsilon turbulence model      3. Combustion: non-premixed model     4. gravity is included                                    5. material: methane  6. density: ideal gas 

Dear all

I want to know how to define step module for the earthquake analysis specially adjusting a parameter for Dynamic Explicit…like  “TIME PERIOD” and the other parameter.

In the figure I showed a mechanism, I want to make an analysis for that. consider the circles in the figure as cylenders which can be seen in the top view. these circles are regular cylenderical parts. I made the fig in paint thats why circle don't seem to be regular. I want to analyze the angle that at given angle, whether the rolling flow of these cylenders will be blocked or not. Please tell me some software to analyze in 2d Prefferably or 3d. Please help me. I'm in intense need.

Hello ANSYS  users,

I am having hard time ANSYS's documentation for fatigue analysis in claasic environment. Tutorials available on internet talk bat ansys workbench only. Has anyone done fatigue analysis in ANSYS claasic? If yes, is there any source for tutorials ?

Thanks,

Hey people

I am new user to Ansys software in area of mechanics of material. I would like to do some  stress analysis in a specimen constructed of multilayers from different material. my interest is to study the problem using Ansys finite element software to support the expermental work and analytical computation . can any body give me any tought how to use cohesive zone model or any other options which are available in this modeling tool. also if there is any tutorial that can be helpful. I would like to connect will people how have worked or still been working with these kind of problems.

thanks in advance.

Dear all,

   I will model a bird to impact a shell at high velocity by ABAQUS.  I decide to model the "bird" by ALE mesh and referred by EOS equation.

   However, most simulation works are done by LS-Dyna. Do anyone know how to determine the parameters in ABAQUS for the "bird" in EOS equation?

   All suggestions are welcome.

   Thanks.

Jason,

Best regards 

I want the name of good book to learn PRO-E 4.0 at home.Can anyone tell me????

Hi Dear IMechanica User

I have faced up a problem during micro-scale cutting using abrasives. I am trying to model this process using Abaqus/explicit and with remeshing module. but currently there doesnt exist any remeshing technique in abaqus/explicit. Could you please suggest the way for doing this simulation by using remeshing technique in Abaqus/explicit. Abaqus/standard is not helpfull to model cutting simulation. this is because i am using Abaqus/explicit by the way.

I am awaiting your valuable suggestions and helpfull informations.

 Thsnks

 Regards

Tahsin Tecelli Opoz (PhD student)

Centre for Precision Technologies

Good evening,

in the order to perfom a calculation of Tsai-Wu Fc in Ansys there are two fundamentally different methods:
1. with the help of nodal stresses.
2. or with the stresses from the element table.

I want to know what is the difference, and which method, according to your experience is the best.

Thank you very much!

Good evening,

in the order to perfom a calculation of Tsai-Wu Fc in Ansys there are two fundamentally different methods:
1. with the help of nodal stresses.
2. or with the stresses from the element table.

I want to know what is the difference, and which method, according to your experience is the best.

Thank you very much!

Dear all,

Herewith I would like to announce that we have decided to make our CONTACT software publicly available. You can obtain a free copy at the web-site www.kalkersoftware.org. We hope that the software is beneficial to you. We further hope that you give us helpful feedback in return.

Hi, everyone!

 Could you please tell me how can I use / calculate the element length when writting VUMAT for ABAQUS?

 Thank you!

I am woring on homogenization with Abaqus for predicting effective properties of composite material, I am using Abaqus to implement  homogenization method, now, I need to compute the stress integration in a subdomain in Abaqus, but I do not know the keyword to do that. Any suggestion is very much appreciated.

Thanks in advance

Hi Everyone,

I'm analysing the Edge waviness which is caused in the sheet metal when it is undergoing the electrolytic coating process (zinc galvanising plant). i.e. there is waviness (shakes) in one edge side of the sheet metal.