Fracture Mechanics Forum

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.

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

Ivan

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 ...