4 ms·
Until it was cheap enough to manufacture with, aluminum hadn't been used in large structural components and the crack formation in aluminum is very different fr
by snovv_crash 8y ago
Until it was cheap enough to manufacture with, aluminum hadn't been used in large structural components and the crack formation in aluminum is very different from steel.
With steel, if you add a large enough safety margin it will essentially never fail due to repeat stress cycles. With aluminum it doesn't matter how strong you design it, eventually cracks will form and it will fail.