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Hamza Bubtana

Notch factors for PMMA sheets


Hello All

I am doing a cyclic loaded fatigue design for a PMMA acrylic sheet and i want to allow a reduction factor for scratches or notches. 

However I cannot seem to be able to find any charts or material properties regarding Notch sensitivity (q) or even the Neuber constant (srt(a)) for this material. 

There is plenty of info on steel and aluminium but none for PMMA

Can i perhaps calculate them based on other more available info like density. 

Can someone point me in the right direction. 

Best regards


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