10.2 Definition of Mechanical Properties of Biological Materials
349
Table 10.1: Mechanical properties of some biological and man-made materials; data
collected from various sources (see text)
Material
(jt
(jc
(jb
E
(MN/m 2 ) (MN/m 2 ) (MN/m 2 ) (GN/m 2 )
Brittle materials
Steel
300-800
200
Glass
70
100
Cephalopoda:
Nautilus (shell)
62
139
207
44
Bivalvia:
Pecten (shell)
42
88
113
30
Mollusc (shell)
30-80
250-380
80-220
30-60
Hard corals:
Acropora formosa
22
Acropora reticulata
40
60
Acropora cervicornis
27-30
30
Jade
70
Flint
180
Slate
100
Chalcedony
165
Granite
150
Fibres
Fibreglass
300-1000
30-100
Collagen
50-100
2
Chitin
100
40
Keratin
100-200
4
Rubbers
Resilin
4-6
0.002
Abductin
8-12
0.004
Elastin
4-6
0.002