Materials

Material properties the physics interfaces read, and the built-in material library (Materials ribbon › Add Material).

Material properties

Property Symbol Unit Elmer keyword Group

Density

ρ

kg/m^3

Density

Basic

Thermal conductivity

k

W/(m*K)

Heat Conductivity

Basic

Heat capacity at constant pressure

Cₚ

J/(kg*K)

Heat Capacity

Basic

Young’s modulus

E

Pa

Youngs Modulus

Young’s modulus and Poisson’s ratio

Poisson’s ratio

ν

1

Poisson Ratio

Young’s modulus and Poisson’s ratio

Coefficient of thermal expansion

α

1/K

Heat Expansion Coefficient

Basic

Electrical conductivity

σ

S/m

Electric Conductivity

Basic

Relative permittivity

εᵣ

1

Relative Permittivity

Basic

Relative permeability

μᵣ

1

Relative Permeability

Basic

Dynamic viscosity

μ

Pa*s

Viscosity

Basic

Speed of sound

c

m/s

Sound Speed

Basic

Surface emissivity

ε

1

Emissivity

Basic

Material library

Properties at 20 °C. Any value can be replaced by an expression, for example a temperature-dependent conductivity k0*(1+0.002*(T-293.15[K])).

Material Library ρ k Cₚ E ν α σ εᵣ μᵣ μ c ε

Air

Built-in

1.204

0.0257

1005

3.43e-3

0

1

1

1.814e-5

343.2

0

Water, liquid

Built-in

998.2

0.598

4182

2.07e-4

5.5e-6

80.1

1

1.002e-3

1481

0.96

Copper

Built-in

8960

400

385

110e9

0.35

17e-6

5.998e7

1

1

0.5

Aluminum

Built-in

2700

238

900

70e9

0.33

23e-6

3.774e7

1

1

0.1

Structural steel

Built-in

7850

44.5

475

200e9

0.3

12.3e-6

4.032e6

1

1

0.28

Stainless steel 304

Metals

7930

16.2

500

193e9

0.29

17.3e-6

1.389e6

1

1.02

0.3

Iron (soft magnetic)

Metals

7870

80.2

449

200e9

0.29

11.8e-6

1.12e7

1

4000

0.3

Titanium beta-21S

Metals

4940

7.5

710

105e9

0.33

7.06e-6

7.407e5

1

1

0.3

Titanium Ti-6Al-4V

Metals

4430

6.7

526

113.8e9

0.342

8.6e-6

5.8e5

1

1

0.3

Brass

Metals

8500

120

380

100e9

0.33

19e-6

1.5e7

1

1

0.3

Silver

Metals

10490

429

235

83e9

0.37

18.9e-6

6.3e7

1

1

0.03

Gold

Metals

19300

317

129

79e9

0.42

14.2e-6

4.52e7

1

1

0.03

Silicon

Semiconductors

2329

130

700

170e9

0.28

2.6e-6

4.35e-4

11.7

1

0.6

Silica glass

Built-in

2203

1.38

703

73.1e9

0.17

0.55e-6

1e-14

3.75

1

5900

0.9

FR4 (Circuit Board)

Built-in

1900

0.3

1369

22e9

0.15

18e-6

4e-3

4.5

1

0.9

Concrete

Built-in

2300

1.8

880

25e9

0.2

10e-6

0.9

Acrylic plastic

Polymers

1190

0.19

1420

3.2e9

0.35

70e-6

1e-14

3.0

1

0.9

Nylon

Polymers

1150

0.26

1700

2e9

0.4

80e-6

1e-12

4

1

0.9

Polyethylene (HDPE)

Polymers

950

0.48

1900

1.1e9

0.42

150e-6

1e-15

2.3

1

0.9

Engine oil

Fluids and Gases

888

0.145

1880

7e-4

1e-12

2.2

1

0.799

1450

Glycerol

Fluids and Gases

1261

0.286

2427

5e-4

6.4e-6

42.5

1

1.412

1904

Materials

No settings.

Material

Selection: Domains

Setting Symbol Unit Default Choices / type

Material Contents

values

Material properties

Appearance

Color

190, 190, 190

Color