Thermal Break Shear Test

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tom@windoor Commentator Join Date: Apr 2008 Location: Mentally there physicaly here Posts: 84	Thermal Break Shear Test 01/22/2009 2:48 PM
	Any one dealing with fenestration, I have a requirement to implement a shear test on parts used in Thermalbrake fenestration i.e. 2 peices of plastic swedged in between 2 extruded aluminum frames used in manufacturing a windows. The holding force of the plastic to aluminum is 400 lbs. After some research I have found others who have had similar questions but have not been succesful in determing how they would specificaly perfrom the test. The material recieved is stock pieces of the aluminum with the plastic thermal break insterted and crimped. Question to any one is " how would you go about performing a shear test on these types of units". Thanks for any response __________________ If you die in the south - going up or down - you have to go through Atlanta - and there will be a layover.
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	Pathfinder Tags: Shear test thermal break

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ozzb Guru Join Date: Mar 2007 Location: Rosedale, Maryland USA Posts: 5197 Good Answers: 266	#1 Re: Thermal break shear test 01/22/2009 4:52 PM
	Is what you are testing for the forces in which the plastic would shear or with shear forces will the crimp hold? In making a thermal brake the plastic is in between the inner and outer aluminum of the frame. In the tests on windows that I have seen your thermal brake would be more subject to pull then to shear. As pressure fluctuates from the interior to the exterior of the structure. As far as a test build a window and put it on a test wall to see if your crimp holds. __________________ Life is not a journey to the grave with the intention of arriving in a pretty, pristine body but rather to come sliding in sideways, all used up and exclaiming, "Wow, what a ride!"
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tom@windoor Commentator Join Date: Apr 2008 Location: Mentally there physicaly here Posts: 84	#3 In reply to #1 Re: Thermal break shear test 01/27/2009 10:25 AM
	You are correct sir - It is a Pull test not a shear test. Thanks for the response. I will get with the supplier regarding size of test sample. This is an item about 2X2 inch square. e.g. A single piece of Insulbar plastic crimped on both edges into aluminum. Each crimp is rated at 400 lbs. e.g 800 lbs for 2 struts. Thanks __________________ If you die in the south - going up or down - you have to go through Atlanta - and there will be a layover.
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lyn Guru Join Date: Oct 2008 Posts: 42355 Good Answers: 1693	#2 Re: Thermal Break Shear Test 01/22/2009 6:47 PM
	With reference to people, the word defenestration refers to being thrown from a window.
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lyn (1); ozzb (1); tom@windoor (1)

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