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What is the theory behing why is it harder to bend a block of wood on its thinner side when load is put onto it

Notice also that the strength of wood is anisotropic: the grain structure of the wood makes it stiffer in one orientation (called "vertical grain") and far more flexible in another (the &...
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What is the theory behing why is it harder to bend a block of wood on its thinner side when load is put onto it

It is covered by the general beam theory. The deflection equation for a simply supported beam with a concentrated load in the mid-span is $\delta = \frac{FL^3}{48EI}$. Since $L$ (length) and $E$ (...
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What is the theory behing why is it harder to bend a block of wood on its thinner side when load is put onto it

The math used to quantify and represent this in calculations is called the second moment of inertia. Qualitatively, it is because the farther apart the faces under tension and compression, for the ...
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Any way to approximate effect of two point loads with just one?

Seems like you're after statically equivalent nodal loads. There's two things at play here: Load equivalency: the total of your equivalent loads will be 4P (sum of all loads), and Displacement ...
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