Literature regarding appearence of cracks. Thermal, pressure fatigue

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Hello!

I am wondering if anyone could recomend som literature for me to get my hands on.
If there is any literature regarding how the appereance of a crack in a piece of thin metal (~0,4mm - 1mm) could be related to pressure fatigue or thermal fatigue.
Does the crack due to thermal fatigue have a specific appereance and so on. I need get my hands on practical pictures and so on, not equations.
Are there any signs in the vicinity of the crack that is indicating that this could be due to pressure fatigue.

Any help is much appreciated.

Thanks

Daniel

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  • #2
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What makes you think the crack that has appeared is due to fatigue?

For a material to fatigue it has to be subject to a significant number of stress reversals.

Failure analysis is a specialist field in which it is vital to gather (and present if others are to help) all the information you can.

Have you eliminated other possible causes, particularly a ltent defect or residual stresses.

You will find lots of failure analysis case histories in Vol3 of

Engineering Materials by Ashby & Jones

You will also need Vol1 to cover fatigue formally.
 
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Thank you for your answer.

I know it is fatigue, possible a combination of thermal and pressure fatigue. I would like to know if you could study the crack visually and make some conclusions.
I know that you could see striations with a SEM and so on.

I will check those books.
Thanks
 

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