n
nThe abalone shell has higher mechanical strength then
conch and giant clam
shells.
n
nOver organization with 45 degree shear angles in micro
structure of Conch shells results
in under-optimized mechanical response in compression.
¨Structure shows impressive response in tension.
nCompression : tension ratio of approx 4 (most ceramics
have a ratio in the range of 10)
n
nGrowth rates, and continuous single growth crystals may
attribute to less organization
and strength in Giant Clam.
n
nHydration of shells with seawater, increased toughness
over time.
n
n