allowable shear in glass?
allowable shear in glass?
(OP)
My boss has asked me to check something that resembles block shear in a glass panel. I don't even know where to begin to find allowable strengths for glass. Can anyone point me in the right direction?






RE: allowable shear in glass?
RE: allowable shear in glass?
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RE: allowable shear in glass?
If you are talking about glass panes as used in exterior or interior windows, they should not be used to resist any loads other than out of plane wind loads or 5 psf interior load.
RE: allowable shear in glass?
Glass may be very uniform in thickness and strength (thus implying a high φ factor, but very brittle with abrupt failure. Thus φ would get very small and thus you would really have very little strength to count on...therefore, whyun is right that only very small loads should be counted on.
Here are a few paragraphs picked up on the net:
Much of what I saw seemed to indicate (and this intuitively feels correct) that the tensile strength depends a LOT on the chemical make-up of the glass itself.
I couldn't find an ASTM test method for glass panes.
RE: allowable shear in glass?
Each clip will see about 50 pounds with an effective shear area (3 sides of a rectangle) of 2.25 in^2.
That is a shear stress of around 20 psi, which I am sure everyone here will tell me is fine, but I need some sort of value that I can actually compare it against for my boss to see.
I've searched the web and even called the glass supplier and haven't been able to come up with anything.
RE: allowable shear in glass?
I'm no glass expert but there may be differences in glass material properties (some more brittle than others? Like different grades of steel).
RE: allowable shear in glass?
Would you normally do this check or leave it to the glass guy?
RE: allowable shear in glass?