Table of Contents
- 1 What is the modulus of elasticity of southern yellow pine?
- 2 How strong is southern yellow pine?
- 3 Is Southern pine the same as southern yellow pine?
- 4 How do you calculate modulus of rupture?
- 5 Is yellow pine stronger than Whitewood?
- 6 Can you use southern yellow pine for framing?
- 7 Which is the best wood for modulus of rupture?
- 8 What kind of rot resistance does loblolly pine have?
What is the modulus of elasticity of southern yellow pine?
1.3. 1 Measured Clear Wood Moduli
| Moisture Content (%) | Modulus of Elasticity (MPa) | |
|---|---|---|
| Compression Longitudinal | Compression Tangential | |
| 7 | 16,345 | 993 |
| 13 | 16,414 | 779 |
| 20 | 15,193 | 483 |
What is the elastic modulus of pine wood?
The Young’s modulus of elasticity of Pine Wood is 10 GPa.
How strong is southern yellow pine?
The strength of Southern pine is very high; MOR is 12,800 psi when dry. The stiffness is also very high; MOE is 1.8 million psi. In fact, this high strength and high density mean that fasteners will perform very well, but will be hard to insert without predrilling.
Is Southern yellow pine stronger than pine?
In the fact that they are both softwoods, Southern yellow pine and Douglas fir are somewhat different. Southern yellow pine is stronger physically. Whereas Douglas Fir is more versatile and easy to work with.
Is Southern pine the same as southern yellow pine?
Southern Yellow Pine lumber is referred to commercially as “Southern Pine” or “Southern Yellow Pine”, and four principal species of the Southern Pine species group make up 90% of the Southern Pine timber inventory. These are loblolly, shortleaf, longleaf and slash pine.
What is the specific gravity of southern yellow pine?
Wood Species
| Average Dried Weight: | 35 lbs/ft3 (570 kg/m3) |
| Specific Gravity (Basic, 12% MC): | .47, .57 |
| Janka Hardness: | 690 lbf (3,070 N) |
| Modulus of Rupture: | 12,800 lbf/in2 (88.3 MPa) |
| Modulus of Rupture: | 1,790,000 lbf/in2 (12.30 GPa) |
How do you calculate modulus of rupture?
Calculate Modulus of Rupture You can calculate the modulus of rupture, “sigma,” using the equation σr = 3Fx/yz2 for the load force F and size dimensions in three directions, x, y and z, of the material.
What is modulus of rupture in wood?
Wood Flooring. All Species. The modulus of rupture is a measure of the maximum load carrying capacity of a given species in bending strength and is proportional to the breaking point or maximum strength as borne by the specimen.
Is yellow pine stronger than Whitewood?
When it comes right down to it, white pine and yellow pine are still similar woods. Pine in general is a more economical wood and is prone to some slight warping. Yellow pine is stronger and heartier, but warps more than white pine. White pine tends to stay truer to its form, but is softer and weaker than yellow pine.
What is the difference between Southern pine and southern yellow pine?
The southern pines have an unusual combination of wood properties that permit their use in a wide range of products. Southern Yellow Pine is a fast-growing species group of pines which produces some of the strongest wood in North America.
Can you use southern yellow pine for framing?
Southern yellow pine wood has a unique cellular structure, making it one of the preferred species for pressure treatment. Many companies use southern yellow pine in the manufacturing of trusses and other construction framing, modular home and deck construction, and in pallets, crating, and other packaging.
Are Southern Pine and southern yellow pine the same?
Which is the best wood for modulus of rupture?
Modulus of Rupture. For instance, Hickory is known to have excellent strength properties among domestic species in the US, and has a MOR of 20,200 lb f /in 2 (139.3 MPa). In comparison, Red Oak is another well-known wood used in cabinetry and furniture, and has a MOR of 14,300 lb f /in 2 (98.6 MPa).
What does the modulus of rupture stand for?
Modulus of Rupture, frequently abbreviated as MOR, (sometimes referred to as bending strength), is a measure of a specimen’s strength before rupture.
What kind of rot resistance does loblolly pine have?
Rot Resistance: The heartwood is rated as moderate to low in decay resistance. Workability: Overall, Loblolly Pine works fairly well with most tools, and it glues and finishes well.
What is the slope of a stress curve in wood?
Typically, the stress–strain curve for wood-based compos- ites is linear below the proportional limit. The slope of the linear curve is the MOE. In compression or tensile tests, this slope is sometime referred to as Young’s modulus to differ- entiate it from bending MOE.