ansys

How to define two plates that had been welded using ANSYS?

Can anyone teach me how to make a butt welded joint using ANSYS? Or in other word, how to define two plate that had been bond together by welding. Thanks


How to do a fatigue life prediction of a welded joint using ANSYS?

i got three questions here.

1) If im using ANSYS, how am i gonna do a fatigue life prediction of a welded joint? The speciment is butt joint. I need to know the procedure.

2) If im using ANSYS nCode DesignLife, how am i gonna obtain the SN curve if im using FE Model or Multi-column?

3) If Im using ANSYS nCode DesignLife, what should i pick for the geometry if im doing on CTOD method of a butt joint welded speciment?

Thanks for the help. :)


How to use cohesive zone modeling (CZM) approach in ANSYS?

Dear All,

Greetings to you. I am M. Faisal Riyad from Bangladesh. I am going to assist one of my professor in his research. The research will about crack propagation analysis. He asked me to learn about the cohesive zone modelling approach in ANSYS. I am searching for some good articles to learn from the beginning. I would be very grateful to you if anyone help me to find the articles or any other way to learn about cohesize zone approach in ANSYS.

 

Thanks,

Faisal 


tubular joint

how to mesh a tubular T-joint near the weld??

 


composite plate analysis in ansys

can anybody tell me how to model composite plate in ansys??  And how to solve it? Specify me what type of element should be used.


allspot's picture

Ansys Error what's going on ???

Dear All,

 

I have much problem when modelling my project with ANSYS, one of problem that I met always like this 

 *** ERROR ***                           CP =     296.828   TIME= 14:56:15
 A small negative equation solver pivot term has been encountered at the
 ROTZ degree of freedom of node 11758.  Check for an insufficiently     
 constrained model.


help friction+shear

Dear friends,

Looking for a possible solution of a problem with external axial friction moment on a shear bolt.I tried to get literatures related with this type of combined loading,but not succeed much.If u can help me it would be great!


Help needed with ansys Macro

Hi

I needed a help regarding ansys macro. I need to process a text file and use the data of the text file for further post processing. Is it possible to exceute an exe file from ansys macro and to read external text file using ansys macro commands

 


multi time step analysis

Hello,

 

I was wondering if any commercially available FEA softwares allow multi time step analysis. 

By multi time step I mean being able to integrate different regions of a mesh with different time steps. 

Say there is a cantilever beam, I wish to use a different time step on the fixed end half of the beam and a different time step on the free end half of the beam. 

Please let me know if there is an application/software that allows me to select different time steps in different regions of the mesh. 

 

Thank you.


allspot's picture

How to Combine Shell Element and Solid Element in ANSYS

Hello Everybody

I'm currently working on on the tubular weld of joint modeling using ANSYS


Muralidhar Seshadri's picture

Full time opportunity at Schlumberger - Houston Pressure and Sampling Product Center

A full time opportunity is available in Schlumberger at the Houston Pressure and Sampling Product Center. Please see the attachment for details.


Help on Ansys

  

 Hi everyone this is my first blog. I am a structural engineering student working on my dissertation which involves Reinforced concrete modelling on ANSYS. My model is an external edge collumn-beam connection and basically I have difficulties modelling the reinforcement.  I managed to model and mesh concrete and now I have to create the reinforcement using elements along the mesh nodes. My main problem is that I don't know how to cut through the beam or column and create cross section views so that I can pick the correct nodes within the concrete block and create the elements. Anyone who knows how to do this please reply and help on the steps I have to follow to achieve this. 

 

Regards,


Hysteretic damping in modal analysis using ANSYS

Hello,

I want to do modal analysis of a structure with viscoelastic material. The viscoelastic
material has a complex youngs modulus E= E (1+i*g), where g is the loss factor. In ANSYS, modal analysis ignores all
nonlinearity, so how can I perform modal analysis with viscoelastic material?


OR


A comparison of Ansys Shell181 and Solsh190 elements

Please find attached a report on a comparison between ANSYS SHELL181 and SOLSH190 elements with particular emphasis on applicability to linear elastic sandwich panels.

Title: Comparison of Ansys elements Shell181 and Solsh190

Abstract:


help plzzz

Hi i want to model a compsoite shaft of glass/epox and carbon/epox  for modal analyse in ansys v12

what element type use ect..

plz help me  plzzzzzzzzzzz


Payam Soltani's picture

Studying the Tensile Behaviour of GLARE Laminates: A Finite Element Modelling Approach

By: Payam Soltani, M. Keikhosravy & R. H. Oskouei & C. Soutis 

 http://www.springerlink.com/content/h831735260162p66/

Abstract:

Numerical simulations based on finite element modelling are increasingly being

developed to accurately evaluate the tensile properties of GLARE (GLAss fibre REinforced

aluminium laminates). In this study, nonlinear tensile behaviour of GLARE Fibre Metal

Laminates (FML) under in-plane loading conditions has been investigated. An appropriate


sweep mesh of a dome in ANSYS

I am dealing with a partial sphere dome in ANSYS, I created the volume by extruding half of an arch area along the axis at the dome center. I am using SOLID65 elements. The problem I am facing now is how to properly sweep mesh the whole volume ( actually, there are four 90 degree partial sphere together after the extrude of the area), because if I simply sweep the volume, the elements around the top center of the sphere will cause element shape warning in the static analysis.

Dose anyone have any idea about how to deal with the mesh around the center? 


Coupled thermo-structural analysis of CFRP using ANSYS

Hi everyone,

 does anyone know publications dealing with the coupled thermo-structural analysis (direct method) of CFRP using ANSYS?


Coupled thermo-structural analysis of CFRP using ANSYS

Hi everyone,

 does anyone know publications dealing with the coupled thermo-structural analysis (direct method) of CFRP using ANSYS?


orthotropic nonlinear viscoelasticity/creep in Ansys

Hi,

 I would like to know if there is any chance to simulate orthotropic nonlinear viscoelasticity/creep of CFRP in ANSYS (e.g. by means of user programmable features (UMAT subroutines) or using the software DIGIMAT or others)? For the nonlinear part I would like to use Schapery's method.

 Many thanks for yor help!

-André


ansys viscoelastic model

 Hi


muhendismrt's picture

Positive definite stress-strain matrix in Ansys

Dear friends,

 I'm an MSc. student at Bogazici University, Turkiye and I'm working on a thesis project about the failure behaviour of fiber reinforced laminated composite plates under different loading types. The material which we use are AS4 fiber reinforced  prepregs and their mechanical properties are the following:

 


E11 =134,000 MPa


muhendismrt's picture

Positive definite stress-strain matrix

Dear friends,

 I'm an MSc. student at Bogazici University, Turkiye and I'm working on a thesis project about the failure behaviour of fiber reinforced laminated composite plates under different loading types. The material which we use are AS4 fiber reinforced  prepregs and their mechanical properties are the following:

 


boundary condition in 3d model

here is a simple question

I have modeled the reduced section of a  tensile test specimen in 3D (a simple cylinder; falt surface in x-y plane, length in z direction).  I applied a load on one flat surface of the cylinder, and put the opposite flat surface as a symmetry plane. 

When I plot the result after the simulation of a tensile test, the cylinder moved in the direction perpendicular to the application of the load.  I was expecting it only to increase in length in the z direction.

Is there any other boundary conditions I should have considered?


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