PMMA screen failure
PMMA screen failure
(OP)
Gents,
I have a PMMA screen of around 800mm x700mm and 6mm thick. If I were to scored the sheet 3mm deep of v shape grove and from one corner of the sheet to another in the form of X. If the sheet is then subjected to impulse pressure of @ 20KPa. Do you think the sheet will break into small pieces or fail at the groves??
I have a PMMA screen of around 800mm x700mm and 6mm thick. If I were to scored the sheet 3mm deep of v shape grove and from one corner of the sheet to another in the form of X. If the sheet is then subjected to impulse pressure of @ 20KPa. Do you think the sheet will break into small pieces or fail at the groves??






RE: PMMA screen failure
That is low pressure, but still over a tonne of load on the sheet. I would be very surprised if it did not fail in short time. The life will be very dependant on the radius at the bottom of the grove.
Regards
Pat
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RE: PMMA screen failure
Chris DeArmitt
"Knowledge has no value except that which can be gained from its application toward some worthwhile end."
Think and Grow Rich - Napoleon Hill
RE: PMMA screen failure
I would guess it would fail along the grooves and leave sharp fracture edges.
At low temperature it may fail into many bits as well.
Harry
www.tynevalleyplastics.co.uk
RE: PMMA screen failure