Fracture Mechanics Forum

hello

i am doing M.tech. i wanted to my destertation in improving the strenght of refractory material. so please guide me what is rectent on this topic...

hi,

i am student of M tech 2nd year and working on fracture mechanics one of the problems i am encoutaring is that my model is a rectangular plate and having a central hole with a crack now problem is that i can not mapped mesh the model in ansys can anyone tell me how to map meshed the model.

Regards

zoeb lakdawala

HI all

     I am Karthikeyan pursuing my
M.S in Rotating Machinery Design. Its high time for me to take up the
project. So I decided to take my project in Fracture or Fatigue. I am
interested in Thermal fiels also. So I would like to do my project in
Thermal Fatigue fracture side. So I would like to get your suggestions
and some topics to take out work.

    I am
interested in coding also so if anybody give guidelines to develop an
element for this analysis then I will be grateful for them.

With Regards

I am trying to use cohesive zone modeling for bimaterial fracture in ANSYS, but I have some problem while inputing the data. Can anybody suggest how to use cohesive zone modeling in ANSYS.

Hi

I want to model an End Notched Flexure (ENF) specimen in ABAQUS for
studying the mode II fracture behaviour in laminated composites.

I have modeled the problem using shell elements and continuum shell
elements.

To prevent the two legs from penetration, I have examined almost all
of connector types (in ABAQUS/CAE) and also contact types but the
results have not been satisfactory.

At this moment I don't have any idea about what to do.

Can anybody help me in this regard?

Best Regards

Kamyar

I'm looking for a summer school about "Fracture Mechanics".....anybody knows where i can search for it?

Ivan

hi, 

I am a Student of 2 year M. Tech. studying in S. V. National Institute of Technology, Surat. My name is Zoeb K Lakdawala. My topic for disseration is ''Implemenation of Fracture Mechanics on Pressure Vessels". In my disseration I want to develop a code on fracture mechanics and compare it with standard Packages like ANSYS & ABAQUS

However, going through the books I have found that in

1. Plane Strain Mode the thickness of the material is very high

Hello

I would like to ask if any one knows, what program I could use to make some *.avi movie from crack made in FRANC3D? I saw a movie called gear_movie.avi, which I found on Cornell www site and I would like to make similar movie. I'm writing a master thesis on subject in which I have to visualizate a crack.

Please help me!

Michael Borowicz 

Does anybody can recommend me a book on interface fracture of bi-materials? I am a layman on this and need your help. Thank you!

Best wishes

Faxin

Hello! 

To describe the crack propagation in a fluid saturated solid I have idea

to combine the Strong Discontinuity (XFEM) with the fluid, but at the micro-scale, which probably means to use (Navier-)Stokes equations or some modification of them.

Dear Mechanicians,

I am reading some papers on the surface effects of nano-sized elements(bars,beams, plates, films) or defects(inhomogeneities, inclusions, cavities) these days. Some researchers have studied the surface effects on the stress state around a circular hole or an elliptic hole. I wonder if there is any research work on the surface effect around a nano-sized crack. Thank you!

Good morning

I have problem with modelling cohesive cracks in Franc2D. The problem is that, when I'm trying to use otion move crack I have only three options (STANDard METHod, INTerFaCe METHod and AUOMATIC) to choose from. And in the instruction manual I found that it should be fourth option "COHESiVE METHod" for cohesive crack propagation.

Good morning

I'm working in Abaqus on modelling crack propagation. Regards this i have two questions.

1)I would like to ask if it is possible for Abaqus to create automatic propagation in 2D. What should I do to receive the effect. I've defined the crack and in the history Output i've defined the crack initiation criterion. There are no warnings, no errors, and in visualization module the effects are miserable.

Hi All,

Are there any good references showing the detailed derivations of elastic strain energy release rate using J-integral instead of differentiating compliance for end notch beam samples : DCB, 3/4 point bend ...? many thanks ...