notches
Analytical Models for Fatigue Life Prediction of Metals in the Stress-Life Approach -- phd thesis by Pietro D’Antuono
dear collegues
I'd be very grateful if you could have a look, if not a deep reading, at the phd thesis of my last student, playing on classical results on uniaxial fatigue, but with a view of simple, unified perspective on constant and varying amplitude fatigue. We made large use of e-fatigue.com web site and the data in there.
Thanks in advance for any remark. The final thesis will be submitted in few weeks time.
Fracture mechanics of porous materials
Fracture mechanics of porous materials
https://doi.org/10.1016/j.engfracmech.2015.10.004
The effects of pore geometry on fracture mechanics is studied by considering notches of various types with a uniform crack growth. This work, published in Engineering Fracture mechanics, sheds light on the role of stress concentrators in the toughness of porous materials.
A simple finding on variable amplitude (Gassner) fatigue SN curves obtained using Miner’s rule for unnotched or notched specimen
We provide a very simple result for a problem which has been often neglected (variable amplitude loading) in academia, but which is of paramount importance in real engineering situations, where fatigue is almost never "constant amplitude".
We found few cases where we could check this extremely simple result, but it worked very well. We would welcome further verifications.
The paper is in press here.
A simple approximate expression for finite life fatigue behaviour in the presence of ‘crack-like’ or ‘blunt’ notches
After a long process (somebody may recall I made also quite some chaos on imechanica to complain with the review process in a previous journal), this paper was accepted. Ask me a preprint if you are interested. I can attach here a few images only.
M. CIAVARELLA
Politecnico di Bari, 70125 Bari, Italy
Received in final form 13 June 2011