T1. Elastic Constants

Elastic Constants - Strength - Density & Thermal Coefficients - Unit Conversions Tables


Typical Moduli and Poisson's Ratios

 For many Isotropic Materials,  G = E/[2(1+n)] ~ E/[2(1.33)] = E/2.66 ~ 0.376 E ~ 3/8 E

Material

Young’s Modulus, E

Shear Modulus,
G

Poisson’s Ratio, n

 

Msi

GPa

Msi

GPa

 

Aluminum alloys

     2014-T6

10.6

73

4.0

28

0.33

     6061-T6

10.0

70

3.8

26

0.33

     7075-T6

10.4

72

3.9

27

0.33

Brass

14 - 16

96 - 110

5.2 - 6.0

36 - 41

0.34

Bronze

14 - 17

96 - 120

5.2 - 6.3

36 - 44

0.34

Cast iron

12 - 25

83 - 170

4.6 - 10

32 - 69

0.2 - 0.3

Concrete (compression)

2.5 - 4.5

17-31

-

-

0.1-0.2

Copper and alloys

16 - 18

110 - 120

5.8 - 6.8

40 - 47

0.33 - 0.36

Plate glass (from other sources)

10

70

3.8

26

0.2

Magnesium alloys

6.0 - 6.5

41 - 45

2.2 - 2.4

15-17

0.35

Monel

25

170

9.5

66

0.32

Nickel alloy

30

210

11.4

80

0.31

Plastics

     Nylon

0.30-0.50

2.1 - 3.4

       

0.4

     Polyethylene

0.10-0.20

0.7 - 1.4

       

0.4

Rubber

0.0014 -
0.014

0.01-0.1

0.0006-
0.006
0.004-
0.0004

0.45-0.5

Steels

28 - 30

190 - 210

10.8 - 11.8

75 - 80

0.27-0.30

Titanium Alloys

15 - 17

100 - 120

5.6 - 6.4

39 - 44

0.33

Tungsten

50 - 55

340 - 380

21 - 23
140 - 160

0.2

Wood (bending)

     Douglas Fir

1.6 - 1.9

11-13

 
  
 

     Oak

1.6 - 1.8

11-12

 
 
 

     Southern Pine

1.6 - 2.0

11-14

 
 
 

   Above table per Gere's Mechanics of Materials, 5th Ed. and Ashby's Engineering Materials I.


Elastic Constants - Strength - Density & Thermal Coefficients - Unit Conversions Tables