Strength of flutes & ridges? How does it work? -- myArmoury.com
Lot-Art | Yoroi - Lacquered metal - Samurai - Black lacquered suit-of-armour zunarikabuto-helmet, with a rare wooden flute maedate - Japan - Edo Period (1600-1868)
Plate armour - Wikipedia
Strength of flutes & ridges? How does it work? -- myArmoury.com
Erasmus Kyrkenar (c. 1495-1567) - Armour garniture of Henry VIII for the field and tilt