Interesting Idea for testing flexural rigidity

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JurgenV
Myrtle
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Location: Bavaria, Germany

Interesting Idea for testing flexural rigidity

Post by JurgenV » Fri Jul 15, 2022 4:08 pm

Hmm, while searching the internet for something totally unrelated I found this:

https://www.portlandguitar.com/blogs/fe ... ng-science

some guy using some of the principles of Trevor including an interesting idea to test the flexural rigidity of the top before gluing the soundbox. What do you think about it? Feasable?
In this way you could adjust the brace height before the last carbon fibre layer on the top? After my first falcate ss where I calculated the brace height with my excel sheet which went really well, I never managed to repeat that. I alway got way too low with the resonance frequencies. So I started using higher braces and had to correct the frequencies by weight (needed to get around 10Hz lower). If it works I could see if I´m on the right way and reduce the weight of my guitars :)

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lamanoditrento
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Re: Interesting Idea for testing flexural rigidity

Post by lamanoditrento » Mon Jul 18, 2022 9:01 am

That is interesting. Seems like a decent way to get things ball park if you trying out a new bracing system. Looks like you would need a mold for each body shape.
Trent

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