PHYSICS RESOURCES DATABASE

PHYSICAL PROPERTIES

ELASTIC PROPERTIES - MODULI

 

 

Stress = force / area Þ s = F / A

Shear stress s s Þ pair of forces act parallel to the area, eg, scissors cutting paper

Strain = change in length / original length Þ e = D L / Lo

Shear strain Þ angle of distortion Þ e s = g tang D L / Lo

Young's Modulus = stress / strain Þ Y = s / e

Shear Modulus = shear stress / shear strain Þ S = s s / e s

Bulk Modulus = - volumetric stress / volumetric strain Þ B = - (F/A) / (D V/Vo)

MATERIAL

Typical values only

YOUNG'S MODULUS

(GPa)

SHEAR MODULUS

(GPa)

BULK

MODULUS

(GPa)

Aluminum

65

30

70

Biological tissue, soft

0.0002

 

 

Bone, compact

Compression

Tension

 

10

22

 

3.5

 

12

Brick

14

 

 

Bronze

120

 

 

Brass

105

 36

61 

Cartilage, human

0.024

 

 

Collagen

06

 

 

Concrete

27

 

 

Copper

120

42

140

Diamond

 

 

620

Glass

65

20

40

Granite

70

 

 

Hair

10

 

 

Iron

190

70

100

Marble

50

 

70

Lead

16

5

8

nickel

210

77

26

Nylon fiber

5

 

 

Oak

14

 

 

Rubber

0.007

0.001

 

Polystyrene

3

 

 

Sapphire

420

 

 

Spider thread

3

 

 

Steel

200

80

100

Tungsten

360

150

200

Wood

15

   

 

Return to Physical Properties

 

Return to main DataBase