2007-10-18 11:28:25 · 11 answers · asked by Greico P 2 in Science & Mathematics ➔ Engineering
There are two considerations in the question -- the strength of the glue and the strength of the wood. Each species has different break points.
Fine Woodworking Magazine did an extensive test of glues and woods with the results in their Aug 2007 magazine.
If you want to do a simpler version you will have to build a test rig to apply the force and limit the size of your samples to something your rig can break.
For a real simple test use Popsicle sticks glued together lengthwise and a bucket of sand. Clamping the sticks will be a problem -- but that's where you start learning REAL engineering!
2007-10-18 12:31:17 · answer #1 · answered by wildturkey1949 4 · 0⤊ 0⤋
The simple way to do you project is with two 2x4 about 2' long. Read all through all of these instructions twice then talk it over with a trusted ADULT before doing anything. Drill one hole in the center each 2x4. The size of the hole will be determined buy the size of the diameter of the eye that you are going to use. The length of the eye is going to be the thickness of the 2x4. There will be one in each piece or wood. Insert each eye, make sure that the eye does not go though the other side of the 2x4. Now glue the two 2x4s together. Remember clean work is good work. Too much glue is not good, nor is two two little glue. Make sure you use clamps. Too much pressure you may squeeze out the glue or uneven is also a consideration. After you have let the pieces dry the right amount of time.(I know that your read the instructions on the glue bottle and looked up on how to glue wood together properly on the Internet right?) Now you can attach one eye to something solid (the top one). The other eye the bottom one is going to have a fish scale on it attached to a 5 gal plastic bucket. Add sand or water, lead, nuts, bolts, whatever until something happens. Be careful when some thing breaks (safety glasses) wood may splinter, sand, or water will make a mess (outside sounds good to me) Have a responsible ADULT HELPING YOU. You may want to record with a camcorder aimed on the scale. That way you will have a recorded weight. Or a video for TV. Things may happen very fast. Have fun learn, and live to tell about it. More fun that way right?
2007-10-18 17:48:27 · answer #2 · answered by The Answer Man 3 · 0⤊ 0⤋
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2016-12-23 20:38:51 · answer #3 · answered by Anonymous · 0⤊ 0⤋
This Site Might Help You.
RE:
About how strong/ how much weight can wood glue hold. Is it possible for eighth graders to test?
2015-08-07 01:37:15 · answer #4 · answered by Anonymous · 0⤊ 0⤋
How Strong Is Wood Glue
2016-10-07 03:55:49 · answer #5 · answered by ? 4 · 0⤊ 0⤋
strong weight wood glue hold eighth graders test
2016-01-31 08:31:07 · answer #6 · answered by ? 4 · 0⤊ 0⤋
Properly used, wood glue can form a bond stronger than the wood, itself. I've had to split oak that I have glued with plain Elmers before, to get at something inside that I missed (then rebuild the top with the busted wood).
Unless you and your 8th graders have access to strength testing machines capable of breaking wood (quite powerful), it would be very difficult to do what you want to do.
Note: I didn't copy vrrJT3 -- my wording was coincidental, as was the timing.
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2007-10-18 11:48:25 · answer #7 · answered by tlbs101 7 · 0⤊ 0⤋
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2017-03-09 03:38:37 · answer #8 · answered by ? 3 · 0⤊ 0⤋
If you are planning to start on your woodworking project, this isn't something you should use, it's something that you would be insane not to. Go here https://tr.im/GuideToWoodworking
Truth is, I've been a carpenter for almost 36 years, and I haven't found anything like this for less than 10's of thousands of dollars.
2016-01-17 14:50:35 · answer #9 · answered by ? 3 · 0⤊ 0⤋
Wood glue, if done properly, will be stronger than the wood itself. So, if you test it, the wood should break instead of the glue.
2007-10-18 11:47:40 · answer #10 · answered by vrrJT3 6 · 1⤊ 0⤋