I am woriking on finite element modelling of fretting fatigue phenomena. However , in order to calculate crack initiation life I need strain life properties of AL7050 t7451 material.
In order to be sure that the data are correct is always better to do the actual tests. Even the material manufacturers in many cases provide wrong material cards. So I would suggest you to get a material from a supplier and do the tests yourself. Alternatively you could contact research groups which are very active in the specific discipline and that can do the experiments. Especially since you are interested to investigate crack initiation, the data would be even more unreliable compared to the full fatigue lifetime.
Hi Yazdan,
As Panos said, it's better you set experimental test in order to find actual data for your material using ASTM standards such as E-647.
If it's impossible for you to run experimental test, you can also use other data searching in articles.
Regards, Amin.
If you need strain life properties for (only) preliminary analyses and experimental test are not possible, you can take a look here:
http://www.dtic.mil/dtic/tr/fulltext/u2/a457449.pdf
Regards.
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