Post by Garland on Mar 17, 2023 8:58:10 GMT -5
I found this here...
Further into the thread is a video about sound boards and bracing.
This is part of a response in the thread.
Regarding tapering and brace shape, there were several studies done a while back that demonstrated (among other things) the so-called "parabolic" (aka tapered) braces were weaker along a given path than their rectangular cousins, when comparing two braces of equal width, length and height. *If* the purpose of the tapering is solely to reduce weight then, by merely shortening the height of the fully rectangular brace, that same goal may be realized while maintaining maximum stiffness. Taking it further... scalloping maximizes the height of the brace in determined locations along its length at points where strength is most needed. The remaining sections of brace can then be significantly lowered in height, the goal again being to maintain maximum stiffness with minimum weight. This is one approach to achieve a so-called "responsive" top.
This is the video from the thread.
