2 ms·
Only a guess: The strength between the grains of the steel has less variation than the strength between the grains of the wood. So as you increase the cross sec
by 3pt14159 11y ago
Only a guess: The strength between the grains of the steel has less variation than the strength between the grains of the wood. So as you increase the cross sectional area the likelihood of splitting goes up.
- vlehto 11y agoYeah, that is only easy reason I can imagine. You can cross the wood grain and turn it into "veneer". That would quickly average out natural wood grain out of it. But you can't cross the glue planes. Now if you scale that up, the likelihood of having faulty glue plane could go up. It still doesn't sound like static stress problem. More like fatigue causing delamination. I'm still bit suspicious because this would be too easy to explain.