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Material Properties for Wooden Bars

Overview

This page provides a table of material properties for different kinds of wood. Measurements for Young's modulus along the grain, radially (perpendicular to the grain), and tangentially (depth) are given. Generally, the tangential measurement is not used for Modalys objects, but provided here out of interest. Many woods have a radial Young's modulus that is approximately a power of ten less than the Young's modulus along the grain. Therefore, where a radial Young's modulus is not given, you can approximate it by lowering the exponent one value and comparing it with measurements of similar woods.

Water ice also has a different Young's modulus perpendicular to the crystallization, so its material properties are also provided in this list, even though it is not a wood!

The list of appropriate freq-loss and const-loss values for different types of wood will hopefully be enlarged in the future. Although this is not a material property, it is an important factor in the way certain types of wood behave when used as musical objects.

For definitions of density, Young's modulus and the loss coefficients see the object properties page.

Table of Material Properties for Wood

Wood
Material Properties for Wood

Wood

density kg/m^3

young N/m^2

young Radial

young Tangential

freq-loss

const-loss

Ash

710

1.6e10

1.6e9

9.0e8

-

-

Balsa

160

6.0e9

3.0e8

1.0e8

-

-

Bamboo

300 - 400

1.4e10

-

-

-

-

Beech

700

1.4e10

2.2e9

1.1e9

-

-

Birch

670

1.6e10

1.1e9

6.0e8

-

-

Cocobolo

1070

1.3e10

-

-

-

-

Ebony

1010

1.8e10 - 1.9e10

-

-

-

-

Douglas Fir

530

1.6e10

1.1e9

8.0e8

-

-

Ice (i.e. water)

920

1.2e10

8.6e9

-

-

-

Larch

590

1.2e10

-

-

-

-

Mahogany

500 - 850

1.2e10

1.1e9

6.0e8

-

-

African Mahogany

540 - 550

1.2e10

9.3e8 - 1.2e9

-

-

-

Maple

800

1.7e10

1.5e9

7.3e8

-

-

European Maple

640

1.0e10

2.2e9

-

-

-

Oak

600 - 900

1.1e10

-

-

-

-

African Padouk (Pterocarpus)

650 - 790

9.54e9 - 1.4e10

-

-

8.22e-6

6.22

Pernambuco

970 - 1000

2.0e10 - 2.2e10

-

-

-

-

Pine

350 - 500

9.0e9

-

-

-

-

Scots Pine

510

1.6e10

1.1e9

6.0e8

-

-

Redwood

380

9.5e9

9.6e8

-

-

-

Rosewood

820 - 1080

2.13e10 - 2.3e10

2.3e9

1.15e9

-

-

Brazilian Rosewood (Pallisandre)

830 - 850

1.6e10

2.8e9

-

4.7e-6

25.79

Indian Rosewood

730 - 740

1.2e10

1.7e9 - 2.2e9

-

-

-

Spruce

400 - 700

1.0e10 - 1.6e10

4.0e8 - 9.0e8

4.0e8 - 6.0e8

-

-

Canadian Spruce

450

1.1e10

-

-

-

-

Norway Spruce

460

1.5e10

9.3e8

-

-

-

Sitka Spruce

460 - 470

1.3e10

8.9e8 - 1.3e9

-

-

-

Teak

650 - 980

1.3e10

-

-

-

-

Walnut

490 - 630

1.1e10

1.2e9

6.0e8

-

-

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