Model Fatigue Crack Growth at the Microstructural Scale

[angavras]

Hello,

I am working on a project that looks at the effects of the
microstructure on fatigue crack growth in metallic materials.

Thus, I used OOF2 to create a FE mesh based on micrographs that I took from the actual microstructures.

I exported the mesh to Abaqus but I am not very familiar with how to run a fatigue crack growth simulation.

Do you have any idea regarding this problem ?

Thanks,

Tasos

 

[flash3780]

Somebody wrote a thesis on something similar:

http://www.ewp.rpi.edu/hartford/~krutiv/MT/WIP/Thesis_final.pdf

I think that you may need third party software (or some clever scripting) to grow the crack. I haven't used ABAQUS in a few years though.

 

[MechIrl]

Abaqus now has XFEM capability which may be suitable for what you need.

 

[angavras]

Thank you, I started learning Abaqus