User login

Navigation

You are here

Durability & Fatigue

Mike Ciavarella's picture

Mean stress effect on Gaßner curves interpreted as shifted Wöhler curves

A criterion for the mean stress effect correction in the shift factor approach for variable amplitude life prediction is presented for both smooth and notched specimens. The criterion is applied to the simple idea proposed by the authors in a previous note that Gaßner curves can be interpreted as shifted Wöhler curves. The mean stress correction used has been proposed by Smith, Watson and Topper and, more in general, by Walker.

Frequency effect on fatigue life of metal-composite

Choose a channel featured in the header of iMechanica: 

Hi 

I have few questions:

1- why most the experimental fatigue studies on metal or metal-composites in the literature were adopted a frequency less than 35Hz (the majority of these test have conducted using 20Hz).

I ran into some articles mentioned that the frequency (0-100Hz) has a marginal effect on the fatigue life of metal. is that the only answer

 

S. Beretta's picture

Fatigue design and maintenance of railway axles

The ESIS Technical Committee 24 provides a forum for researchers and engineers who deal with structural integrity problems in modern railway system. During our latest meeting, held on 1-2 October 2014 at Politecnico di Milano, excellent talks presented results obtained within different research projects, including  EURAXLES - EBFW3  and SUSTRAIL.

EnginSoftUK's picture

International CAE Conference 2012 - Poster Award

The International CAE Conference held on the 22nd-23rd October in Italy will be running a competition for the best poster that illustrates the use of CAE technology.

Enter for free and win a Tablet PC!

3 posters will be awarded from each of the 2 categories;

  • Industry
  • Academic


Deadline: 28th September 2012

Find out more and submit your poster now > http://bit.ly/caeposter

More about the conference;

Subscribe to RSS - Durability & Fatigue

Recent comments

More comments

Syndicate

Subscribe to Syndicate