The following tables provide general ranges for mechanical properties of wood-based composites and panel products.
| Table 6. General
property values for sheathing-grade plywooda |
Property
|
Value
|
ASTM test methodb
(where applicable) |
Linear hygroscopic expansion
(30%-90% RH) |
0.15%
|
NA |
Linear thermal expansion |
6.1x lO-6cm/cm/0C (3.4 x 10-6 in/in/0F) |
NA |
Flexure
Modulus of rupture
Modulus of elasticity |
20.7-48.3 MPa (3,000-7,000 lb/in2)
6.89-13.1 GPa (1-1.9 x 106 lb/in2)
|
D3043
|
Tensile strength |
10.3-27.6 MPa (1,500-4,000 lb/in2) |
D3500 |
Compressive strength |
20.7-34.5 MPa (3,000-5,000 lb/in2) |
D3501 |
Shear through thickness
(edgewise
shear)
Shear strength
Shear modulus |
4.1-7.6 MPa (600-1,100 lb/in2)
0.47-0.761 GPa (68-110 x 103 lb/in2)
|
D2719
D3044
|
Shear
in plane of plies
(rolling shear)
Shear strength
Shear modulus |
1.7-2.1 MPA (250-300 lb/in2)
0.14-0.21 GPa (20-30 x 103 lb/in2) |
D2718 |
a All mechanical properties are based
on gross-section properties of plywood panels, with stress applied parallel
to grain direction of face plies where applicable. Note: Data are not to be
used in developing allowable design values. Information on engineering design
methods for plywood courtesy of APA-The Engineered Wood Association, Tacoma,
WA.
bStandard methods of testing strength and elastic properties of structural panels are given in ASTM Standards (see References). |
| |
|
|
| Table
7. General property values for sheathing-grade OSBa |
| Property |
Value |
ASTM test methodb
(where applicable) |
|
Linear hygroscopic expansion
(30%-90% RH) |
0.15%
|
NA |
|
Linear thermal expansion |
6.1x lO-6cm/cm/0C (3.4 x 10-6 in/in/0F) |
NA |
|
Flexure
Modulus of rupture
Modulus of elasticity |
20.7-27.6.3 MPa (3,000-4,000 lb/in2)
4.83-8.27 GPa (700-1,200 x 103 lb/in2) |
D3043
|
|
Tensile strength |
6.9-10.3 MPa (1,000-1,500 lb/in2) |
D3500 |
|
Compressive strength |
10.3-17.2 MPa (1,500-2,500 lb/in2) |
D3501 |
|
Shear through thickness
(edgewise shear)
Shear strength
Shear modulus |
6.9-10.3 MPa (1,000-1,500 lb/in2)
1.24-2.00 GPa (180-290 x 103 lb/in2)
|
D2719
D3044
|
| Shear in plane of plies
(rolling shear)
Shear strength
Shear modulus |
1.38-2.1 MPA (200-300 lb/in2)
0.14-0.34 GPa (20-50 x 103 lb/in2)
|
D2718 |
a All mechanical properties
are based on gross-section properties of OSB panels, with stress applied
parallel to grain direction of face plies where applicable. Note: Data are
not to be used in developing allowable design values. Information on engineering
design methods for plywood courtesy of APA-The Engineered Wood Association,
Tacoma, WA.
bStandard methods of testing strength and elastic properties of
structural panels are given in ASTM Standards (see References). |
