Quartz Circular Plate
Quartz Circular Plate
(OP)
Our mechanical engineer is asking me to check circular plate made of quartz. Plate is about 14" dia and 2" thick with a lot (about 150) holes 3/16" dia. All quartz properties (E, yield, allowable tensile stress, ...) were given. I am considering modeling this plate with triangular plate elements. Any advice how to analyze this plate would be appreciated.






RE: Quartz Circular Plate
I would think if you really wanted to get more detailed than that, you'd probably be looking at a solid model rather than plate elements. That could get involved modeling around the holes, especially if they have any chamfer at the edges. Somebody that did this all the time could probably whip it up pretty fast, though.
RE: Quartz Circular Plate
Old CA SE
RE: Quartz Circular Plate
RE: Quartz Circular Plate
Yes, and yes. But, it is also a brittle material, (so any "yield strength" he was given is nonsense). Also has problems with crack propagation, variable strength due to flaws/inclusions, and is susceptible to SCC in certain fluids. All of which typically call for a rather large knock-down for allowable strength.
RE: Quartz Circular Plate
Thanks. My questions were meant to validate cdi12's data which sounded odd to me.
cdi12:
The following is my personal opinion - you shall double check the properties with a knowledgable material engineer competent in this field, and discuss with him the behavior of quartz under the proposed application before spend time and energy to build a monstrous medel without clear criteria and realistic expectation of outcomes.
RE: Quartz Circular Plate